SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549


SCHEDULE 13G/A
(Rule 13d-102)


Amendment No. 2

INFORMATION TO BE INCLUDED IN STATEMENTS PURSUANT TO RULES 13d-1(b), (c)

AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

AVIGEN, INC.
(Name of Issuer)

COMMON STOCK, $0.001 PAR VALUE
(Title of Class of Securities)

053690103
(CUSIP Number)

December 31, 2007
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[ ] Rule 13d-1(b)

[X] Rule 13d-1(c)

[ ] Rule 13d-1(d)


* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).


Schedule 13G/A

CUSIP No. 053690103 PAGE 2 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner Partners
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 New York
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 152,913
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 152,913
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 152,913
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0.5%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 3 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner Institutional Partners, L.P.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 290,142
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 290,142
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 290,142
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 1.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 4 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 M. H. Davidson & Co.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 New York
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 22,897
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 22,897
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 22,897
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0.1%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 5 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner International, Ltd.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 British Virgin Islands
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 481,032
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 481,032
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 481,032
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 1.6%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 CO
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 6 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Serena Limited
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Cayman Islands
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 11,271
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 11,271
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 11,271
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 CO
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 7 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner Healthcare Fund LP
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 805,316
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 805,316
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 805,316
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 2.7%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 8 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner Healthcare International Ltd.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Cayman Islands
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 887,859
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 887,859
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 887,859
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 3.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 CO
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 9 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 MHD Management Co.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 New York
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 152,913
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 152,913
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 152,913
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 0.5%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 10 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner Advisers Inc.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 New York
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 290,142
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 290,142
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 290,142
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 1.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IA
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 11 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Davidson Kempner International Advisors, L.L.C.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 492,303
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 492,303
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 492,303
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 1.7%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 OO
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 12 OF 42

-----------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 DK Group LLC
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 805,316
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 805,316
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 805,316
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 2.7%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 OO
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 13 OF 42

-----------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 DK Management Partners LP
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 887,859
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 887,859
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 887,859
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 3.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 PN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 14 OF 42

-----------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 DK Stillwater GP LLC
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 Delaware
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 887,859
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 887,859
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 887,859
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 3.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 OO
------------------------------------------------------------------------------]


Schedule 13G/A

CUSIP No. 053690103 PAGE 15 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Thomas L. Kempner, Jr.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 16 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Marvin H. Davidson
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 17 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Stephen M. Dowicz
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 18 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Scott E. Davidson
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 19 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Michael J. Leffell
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 20 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Timothy I. Levart
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United Kingdom & United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 21 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Robert J. Brivio, Jr.
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 22 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Eric P. Epstein
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 23 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Anthony A. Yoseloff
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN

------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 24 OF 42

------------------------------------------------------------------------------
(1) NAME OF REPORTING PERSON
 S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
 Avram Z. Friedman
------------------------------------------------------------------------------
(2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
 (a) [ ]
 (b) [X]
------------------------------------------------------------------------------
(3) SEC USE ONLY
------------------------------------------------------------------------------
(4) CITIZENSHIP OR PLACE OF ORGANIZATION
 United States
------------------------------------------------------------------------------

NUMBER OF (5) SOLE VOTING POWER
 0
SHARES ____________________________________________________________

BENEFICIALLY (6) SHARED VOTING POWER
 2,651,430
OWNED BY ____________________________________________________________

EACH (7) SOLE DISPOSITIVE POWER
 0
REPORTING ____________________________________________________________

PERSON WITH (8) SHARED DISPOSITIVE POWER
 2,651,430
------------------------------------------------------------------------------
 (9) AGGREGATE AMOUNT BENEFICIALLY OWNED
 BY EACH REPORTING PERSON
 2,651,430
------------------------------------------------------------------------------
 (10) CHECK BOX IF THE AGGREGATE AMOUNT
 IN ROW (9) EXCLUDES CERTAIN SHARES [ ]
------------------------------------------------------------------------------
 (11) PERCENT OF CLASS REPRESENTED
 BY AMOUNT IN ROW (9)
 9.0%
------------------------------------------------------------------------------
 (12) TYPE OF REPORTING PERSON
 IN
------------------------------------------------------------------------------


Schedule 13G/A

CUSIP No. 053690103 PAGE 25 OF 42


ITEM 1(a). NAME OF ISSUER:

 Avigen, Inc. (the "Company")

ITEM 1(b). ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

 1301 Harbor Bay Parkway
 Alameda, CA 94502

ITEM 2(a). NAME OF PERSON FILING:

 This Statement is filed by each of the entities and persons listed below,
all of whom together are referred to herein as the "Reporting Persons":

 (i) Davidson Kempner Partners, a New York limited partnership
 ("DKP");

 (ii) Davidson Kempner Institutional Partners, L.P., a Delaware
 limited partnership ("DKIP");

 (iii) M. H. Davidson & Co., a New York limited partnership
 ("CO");

 (iv) Davidson Kempner International, Ltd., a British Virgin
 Islands corporation ("DKIL");

 (v) Serena Limited, a Cayman Islands corporation ("Serena");

 (vi) Davidson Kempner Healthcare Fund LP, a Delaware limited
 partnership ("DKHF");

 (vii) Davidson Kempner Healthcare International Ltd., a Cayman
 Islands corporation ("DKHI");

 (viii) MHD Management Co., a New York limited partnership and the
 general partner of DKP ("MHD");

 (ix) Davidson Kempner Advisers Inc., a New York corporation and
 the general partner of DKIP ("DKAI"), which is registered
 as an investment adviser with the U.S. Securities and
 Exchange Commission;

 (x) Davidson Kempner International Advisors, L.L.C., a
 Delaware limited liability company and the manager of
 DKIL and Serena ("DKIA");

 (xi) DK Group LLC, a Delaware limited liability company and the
 general partner of DKHF ("DKG");

 (xii) DK Management Partners LP, a Delaware limited partnership
 and the investment manager of DKHI ("DKMP");


Schedule 13G/A

CUSIP No. 053690103 PAGE 26 OF 42


 (xiii) DK Stillwater GP LLC, a Delaware limited liability company
 and the general partner of DKMP ("DKS"); and

 (xiv) Messrs. Thomas L. Kempner, Jr., Marvin H. Davidson, Stephen
 M. Dowicz, Scott E. Davidson, Michael J. Leffell, Timothy I.
 Levart, Robert J. Brivio, Jr., Anthony A. Yoseloff, Eric P.
 Epstein and Avram Z. Friedman (collectively, the
 "Principals"), who are the general partners of CO and MHD,
 the sole managing members of DKIA and DKG and the sole
 stockholders of DKAI. Messrs. Thomas L. Kempner, Jr. and
 Timothy I. Levart are Executive Managing Member and Deputy
 Executive Managing Member, respectively, of DKS. Each of
 Messrs. Kempner and Levart, together with Messrs. Marvin H.
 Davidson, Stephen M. Dowicz, Scott E. Davidson, Michael J.
 Leffell, Robert J. Brivio, Jr., Anthony A. Yoseloff, Eric P.
 Epstein and Avram Z. Friedman are limited partners of DKMP.

ITEM 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE:

 The address of the principal business office of each of the Reporting
Persons is c/o Davidson Kempner Partners, 65 East 55th Street, 19th Floor, New
York, New York 10022.

ITEM 2(c). CITIZENSHIP:

 (i) DKP - a New York limited partnership

 (ii) DKIP - a Delaware limited partnership

 (iii) CO - a New York limited partnership

 (iv) DKIL - a British Virgin Islands corporation

 (v) Serena - a Cayman Islands corporation

 (vi) DKHF - a Delaware limited partnership

 (vii) DKHI - a Cayman Islands corporation

 (viii) MHD - a New York limited partnership

 (ix) DKAI - a New York corporation

 (x) DKIA - a Delaware limited liability company

 (xi) DKG - a Delaware limited liability company

 (xii) DKMP - a Delaware limited partnership

 (xiii) DKS - a Delaware limited liability company

 (xiv) Thomas L. Kempner, Jr. - United States


Schedule 13G/A

CUSIP No. 053690103 PAGE 27 OF 42


 (xv) Marvin H. Davidson - United States

 (xvi) Stephen M. Dowicz - United States

 (xvii) Scott E. Davidson -United States

 (xviii) Michael J. Leffell - United States

 (xix) Timothy I. Levart - United Kingdom & United States

 (xx) Robert J. Brivio, Jr. - United States

 (xxi) Eric P. Epstein - United States

 (xxii) Anthony A. Yoseloff - United States

 (xxiii) Avram Z. Friedman - United States

ITEM 2(d). TITLE OF CLASS OF SECURITIES:

 COMMON STOCK, $0.001 PAR VALUE

ITEM 2(e). CUSIP NUMBER:

 053690103

ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO 13d-1(b) OR 13d-2(b) OR (c),
CHECK WHETHER THE PERSON FILING IS A:

 (a) [ ] Broker or dealer registered under Section 15 of the Act;

 (b) [ ] Bank as defined in Section 3(a)(6) of the Act;

 (c) [ ] Insurance Company as defined in Section 3(a)(19) of
 the Act;

 (d) [ ] Investment Company registered under Section 8c of the
 Investment Company Act of 1940;

 (e) [ ] Investment Adviser registered under Section 203 of the
 Investment Advisers Act of 1940: see Rule
 13d-1(b)(1)(ii)(E);

 (f) [ ] Employee Benefit Plan, Pension Fund which is subject to
 the provisions of the Employee Retirement Income Security
 Act of 1974 or Endowment Fund; see Rule 13d-1(b)(1)(ii)(F);

 (g) [ ] Parent Holding Company, in accordance with Rule
 13d-1(b)(ii)(G);

 (h) [ ] Savings Associations as defined in Section 3(b) of the
 Federal Deposit Insurance Act;


Schedule 13G/A

CUSIP No. 053690103 PAGE 28 OF 42


 (i) [ ] Church Plan that is excluded from the definition of an
 investment company under Section 3(c)(14) of the
 Investment Company Act of 1940;

 (j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

ITEM 4. OWNERSHIP.

 The Principals may be deemed to beneficially own an aggregate of 2,651,430
Shares as a result of their voting and dispositive power over the 2,651,430
Shares beneficially owned by DKP, DKIP, DKIL, Serena, CO, DKHF and DKHI.

 DKIA may be deemed to beneficially own the 481,032 Shares beneficially
owned by DKIL and the 11,271 Shares beneficially owned by Serena as a result of
its voting and dispositive power over those Shares. DKAI may be deemed to
beneficially own the 290,142 Shares beneficially owned by DKIP as a result of
its voting and dispositive power over those Shares. MHD may be deemed to
beneficially own the 152,913 Shares beneficially owned by DKP as a result of its
voting and dispositive power over those Shares. DKG may be deemed to
beneficially own the 805,316 Shares beneficially owned by DKHF as a result of
its voting and dispositive power over those Shares. DKMP and DKS may be deemed
to beneficially own the 887,859 Shares beneficially owned by DKHI as a result of
their voting and dispositive power over those Shares.

 A. DKP

 (a) Amount beneficially owned: 152,913

 (b) Percent of class: 0.5%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 152,913

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 152,913

 B. DKIP

 (a) Amount beneficially owned: 290,142

 (b) Percent of class: 1.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 290,142


Schedule 13G/A

CUSIP No. 053690103 PAGE 29 OF 42


 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 290,142

 C. CO

 (a) Amount beneficially owned: 22,897

 (b) Percent of class: 0.1%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 22,897

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 22,897

 D. DKIL

 (a) Amount beneficially owned: 481,032

 (b) Percent of class: 1.6%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 481,032

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 481,032

 E. Serena

 (a) Amount beneficially owned: 11,271

 (b) Percent of class: 0.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 11,271

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 11,271


Schedule 13G/A

CUSIP No. 053690103 PAGE 30 OF 42


 F. DKHF

 (a) Amount beneficially owned: 805,316

 (b) Percent of class: 2.7%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 805,316

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 805,316

 G. DKHI

 (a) Amount beneficially owned: 887,859

 (b) Percent of class: 3.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 887,859

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 887,859

 H. MHD

 (a) Amount beneficially owned: 152,913

 (b) Percent of class: 0.5%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 152,913

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 152,913


Schedule 13G/A

CUSIP No. 053690103 PAGE 31 OF 42


 I. DKAI

 (a) Amount beneficially owned: 290,142

 (b) Percent of class: 1.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 290,142

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 290,142

 J. DKIA

 (a) Amount beneficially owned: 492,303

 (b) Percent of class: 1.7%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 492,303

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 492,303

 K. DKG

 (a) Amount beneficially owned: 805,316

 (b) Percent of class: 2.7%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 805,316

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 805,316


Schedule 13G/A

CUSIP No. 053690103 PAGE 32 OF 42


 L. DKMP

 (a) Amount beneficially owned: 887,859

 (b) Percent of class: 3.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 887,859

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 887,859

 M. DKS

 (a) Amount beneficially owned: 887,859

 (b) Percent of class: 3.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 887,859

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 887,859

 N. Thomas L. Kempner, Jr.

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430


Schedule 13G/A

CUSIP No. 053690103 PAGE 33 OF 42


 O. Marvin H. Davidson

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 P. Stephen M. Dowicz

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 Q. Scott E. Davidson

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430


Schedule 13G/A

CUSIP No. 053690103 PAGE 34 OF 42


 R. Michael J. Leffell

 (a) Amount beneficially owned. 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 S. Timothy I. Levart

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 T. Robert J. Brivio, Jr.

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430


Schedule 13G/A

CUSIP No. 053690103 PAGE 35 OF 42


 U. Eric P. Epstein

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 V. Anthony A. Yoseloff

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430

 W. Avram Z. Friedman

 (a) Amount beneficially owned: 2,651,430

 (b) Percent of class: 9.0%

 (c) Number of shares as to which such person has:

 (i) sole power to vote or to direct the vote: 0

 (ii) shared power to vote or to direct the vote: 2,651,430

 (iii) sole power to dispose or to direct the disposition: 0

 (iv) shared power to dispose or to direct the disposition: 2,651,430


Schedule 13G/A

CUSIP No. 053690103 PAGE 36 OF 42


ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

 Not applicable.

ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

 The partners, members or stockholders of each of the Reporting Persons,
including the Principals, have the right to participate in the receipt of
dividends from, or proceeds from the sale of, the securities held for the
account of such Reporting Person in accordance with their ownership interests in
such Reporting Person. The Reporting Persons disclaim all beneficial ownership
as affiliates of a Registered Investment Adviser, and, in any case, disclaim
beneficial ownership except as to the extent of their pecuniary interest in the
shares. The Reporting Persons have elected to file Schedule 13G although such
filing may not be required under the Securities Exchange Act of 1934, as amended
(the "Act").

ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
 THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.

 Not applicable.

ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

 See Item 4.

ITEM 9. NOTICE OF DISSOLUTION OF GROUP.

 Not applicable.

ITEM 10. CERTIFICATION. (if filing pursuant to Rule 13d-1(c))

 Each of the Reporting Persons hereby makes the following certification:

 By signing below we certify that, to the best of our knowledge and belief,
the securities referred to above were not acquired and are not held for the
purpose of or with the effect of changing or influencing the control of the
issuer of the securities and were not acquired and are not held in connection
with or as a participant in any transaction having that purpose or effect.


Schedule 13G/A

CUSIP No. 053690103 PAGE 37 OF 42


 SIGNATURES

 After reasonable inquiry and to the best of our knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct.

DATED: February 14, 2008 DAVIDSON KEMPNER PARTNERS
 By: MHD Management Co.,
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER INSTITUTIONAL
 PARTNERS, L.P.
 By: Davidson Kempner Advisers Inc.,
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: President

 M.H. DAVIDSON & CO.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER INTERNATIONAL, LTD.
 By: Davidson Kempner International
 Advisors, L.L.C.,
 its Investment Manager

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 SERENA LIMITED
 By: Davidson Kempner International
 Advisors, L.L.C.,
 its Investment Manager

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member


Schedule 13G/A

CUSIP No. 053690103 PAGE 38 OF 42


 DAVIDSON KEMPNER HEALTHCARE FUND LP
 By: DK Group LLC
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DAVIDSON KEMPNER HEALTHCARE
 INTERNATIONAL LTD.
 By: DK Management Partners LP
 its Investment Manager
 By: DK Stillwater GP LLC,
 its general partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 MHD MANAGEMENT CO.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER ADVISERS INC.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: President

 DAVIDSON KEMPNER INTERNATIONAL
 ADVISORS, L.L.C.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DK GROUP LLC

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member


Schedule 13G/A

CUSIP No. 053690103 PAGE 39 OF 42


 DK MANAGEMENT PARTNERS LP
 By: DK Stillwater GP LLC,
 its general partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DK STILLWATER GP LLC

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Thomas L. Kempner, Jr.

 /s/ Marvin H. Davidson
 ---------------------------------
 Marvin H. Davidson

 /s/ Stephen M. Dowicz
 ---------------------------------
 Stephen M. Dowicz

 /s/ Scott E. Davidson
 ---------------------------------
 Scott E. Davidson

 /s/ Michael J. Leffell
 ---------------------------------
 Michael J. Leffell

 /s/ Timothy I. Levart
 ---------------------------------
 Timothy I. Levart

 /s/ Robert J. Brivio, Jr.
 ---------------------------------
 Robert J. Brivio, Jr.

 /s/ Eric P. Epstein
 ---------------------------------
 Eric P. Epstein

 /s/ Anthony A. Yoseloff
 ---------------------------------
 Anthony A. Yoseloff

 /s/ Avram Z. Friedman
 ---------------------------------
 Avram Z. Friedman


Schedule 13G/A

CUSIP No. 053690103 PAGE 40 OF 42


 EXHIBIT 1

 JOINT ACQUISITION STATEMENT

 PURSUANT TO RULE 13d-1(k)

 The undersigned acknowledge and agree that the foregoing statement on
Schedule 13G is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13G, shall be filed on
behalf of each of the undersigned without the necessity of filing additional
joint acquisition statements. The undersigned acknowledge that each shall be
responsible for the timely filing of such amendments, and for the completeness
and accuracy of the information concerning him or it contained therein, but
shall not be responsible for the completeness and accuracy of the information
concerning the others, except to the extent that he or it knows or has reason to
believe that such information is inaccurate.

DATED: February 14, 2008 DAVIDSON KEMPNER PARTNERS
 By: MHD Management Co.,
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER INSTITUTIONAL
 PARTNERS, L.P.
 By: Davidson Kempner Advisers Inc.,
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: President

 M.H. DAVIDSON & CO.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER INTERNATIONAL, LTD.
 By: Davidson Kempner International
 Advisors, L.L.C.,
 its Investment Manager

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member


Schedule 13G/A

CUSIP No. 053690103 PAGE 41 OF 42


 SERENA LIMITED
 By: Davidson Kempner International
 Advisors, L.L.C.,
 its Investment Manager

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DAVIDSON KEMPNER HEALTHCARE FUND LP
 By: DK Group LLC
 its General Partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DAVIDSON KEMPNER HEALTHCARE
 INTERNATIONAL LTD.
 By: DK Management Partners LP
 its Investment Manager
 By: DK Stillwater GP LLC,
 its general partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 MHD MANAGEMENT CO.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Managing Partner

 DAVIDSON KEMPNER ADVISERS INC.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: President

 DAVIDSON KEMPNER INTERNATIONAL
 ADVISORS, L.L.C.

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member


Schedule 13G/A

CUSIP No. 053690103 PAGE 42 OF 42


 DK GROUP LLC

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DK MANAGEMENT PARTNERS LP
 By: DK Stillwater GP LLC,
 its general partner

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 DK STILLWATER GP LLC

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Name: Thomas L. Kempner, Jr.
 Title: Executive Managing Member

 /s/ Thomas L. Kempner, Jr.
 ---------------------------------
 Thomas L. Kempner, Jr.

 /s/ Marvin H. Davidson
 ---------------------------------
 Marvin H. Davidson

 /s/ Stephen M. Dowicz
 ---------------------------------
 Stephen M. Dowicz

 /s/ Scott E. Davidson
 ---------------------------------
 Scott E. Davidson

 /s/ Michael J. Leffell
 ---------------------------------
 Michael J. Leffell

 /s/ Timothy I. Levart
 ---------------------------------
 Timothy I. Levart

 /s/ ROBERT J. BRIVIO, JR.
 ---------------------------------
 Robert J. Brivio, Jr.

 /s/ Eric P. Epstein
 ---------------------------------
 Eric P. Epstein

 /s/ Anthony A. Yoseloff
 ---------------------------------
 Anthony A. Yoseloff

 /s/ AVRAM Z. FRIEDMAN
 ---------------------------------
 Avram Z. Friedman

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