Board of Directors

James B. Wyngaarden, M.D. ׀ Chairman of the Board of Directors
Youssef El Zein ׀ Vice Chairman of the Board of Directors
Sudhir Agrawal, D. Phil. ׀ Director
Robert W. Karr, M.D. ׀ Director
C. Keith Hartley ׀ Director
Hans Mueller, Ph.D. ׀ Director
William S. Reardon, C.P.A. ׀ Director
Alison Taunton-Rigby, Ph.D., OBE ׀ Director
Paul C. Zamecnik, M.D. ׀ Director Emeritus

C. Keith Hartley ׀ Director
C. Keith Hartley was appointed a member of the Company's Board of Directors in 2000. Mr. Hartley is Managing Partner of Hartley Capital Advisors, Merchant Bankers. He was Managing Partner of Forum Capital Markets L.L.C. from 1995 to 2000. Prior to that Mr. Hartley was an independent financial consultant from May 1991 to August 1995. He also serves as a Director of Comdisco, Inc., Swisher International Group, Inc. and U.S. Diagnostics, Inc.