Exhibit 5

JOINT FILING AGREEMENT

PURSUANT TO RULE 13d-1(k)

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

Dated: November 23, 2007

/s/ Patrick Soon-Shiong

Patrick Soon-Shiong

/s/ Steven H. Hassan

Steven H. Hassan

THE THEMBA 2005 TRUST I
By:	/s/ Steven H. Hassan
Steven H. Hassan, Trustee

THE THEMBA 2005 TRUST II
By:	/s/ Steven H. Hassan
Steven H. Hassan, Trustee

CALIFORNIA CAPITAL LIMITED PARTNERSHIP
By: Themba LLC, its general partner
By:	/s/ Steven H. Hassan
Name: Steven H. Hassan
Title: Manager
THEMBA LLC
By:	/s/ Steven H. Hassan
Name: Steven H. Hassan
Title: Manager