Corporate Governance

	Audit Committee	Compensation Committee	Nominating and Corporate Governance Committee	Science Committee
Steven Altschuler, MD	Audit Committee	Compensation Committee
Kathleen LaPorte		Compensation Committee	Nominating and Corporate Governance Committee
Edward Morrey Atkinson III			Nominating and Corporate Governance Committee	Science Committee
Martin Babler	Audit Committee	Compensation Committee
Charles A. McWherter, PhD			Nominating and Corporate Governance Committee	Science Committee
Derek DiRocco, Ph.D.			Nominating and Corporate Governance Committee	Science Committee
Michael Hayden, M.B. Ch.B., Ph.D.		Compensation Committee		Science Committee
Lota Zoth	Audit Committee	Compensation Committee

= Chairperson = Member = Chairman of the Board

Committees Composition