Joint Filer Information

Names:	Deerfield Capital L.P., Deerfield Special Situations Fund, L.P., Deerfield Management Company, L.P. and Deerfield Special Situations Fund International Limited.
Address:	Deerfield Capital, L.P., Deerfield Special Situations Fund, L.P. and Deerfield Management Company, L.P 780 Third Avenue, 37th Floor New York, NY  10017
	Deerfield Special Situations Fund International Limited: c/o Bisys Management (B.V.I.) Limited Bison Court, Columbus Centre, P.O. Box 3460 Road Town, Tortola British Virgin Islands
Designated Filer:	James E. Flynn
Issuer and Ticker Symbol:	Fibrocell Science, Inc. (FCSC)
Date of Event Requiring Statement:	March 2, 2010

The undersigned, Deerfield Capital, L.P., Deerfield Special Situations Fund, L.P., Deerfield Management Company, L.P and Deerfield Special Situations Fund International Limited are jointly filing the attached Initial Statement of Beneficial Ownership on Form 3 with James E. Flynn with respect to the beneficial ownership of securities of Hana Biosciences, Inc.

Signatures:

DEERFIELD CAPITAL, L.P.
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-in-Fact
DEERFIELD SPECIAL SITUATIONS FUND, L.P.
By:	Deerfield Capital, L.P., General Partner
By:	J.E. Flynn Capital LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-in-Fact
DEERFIELD MANAGEMENT COMPANY, L.P.
By:	Flynn Management LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-in-Fact
DEERFIELD SPECIAL SITUATIONS FUND INTERNATIONAL LIMITED
By:	Deerfield Management Company
By:	Flynn Management LLC, General Partner
By:	/s/ Darren Levine
	Darren Levine, Attorney-in-Fact