Terry L. Collins, Ph.D.
   Chairman, CEO
Kerry M. Rowe
   President,
   Chief Operating Officer
Aaron N. Daniels
   Vice President,
   Chief Financial Officer, Treasurer

Board of Directors & Committees

Terry L. Collins, Ph.D
Maureen Baginski
   Corporate Governance & Nominating Committee
   Compensation / Stock Option Committee
Delores M. Etter, Ph.D.
   Corporate Governance & Nominating Committee
   Compensation / Stock Option Committee
John Irvin, CPA
   Audit Committee Chairman
David C. Karlgaard, Ph.D.
   Audit Committee
Peter A. Marino
   Compensation / Stock Option Committee
   Corporate Governance & Nominating Committee
Robert McCashin
   Audit Committee
   Compensation / Stock Option Committee Chairman
   Corporate Governance & Nominating Committee
Thomas E. Murdock
S. Kent Rockwell
Victor F. Sellier
Lloyd A. Semple
   Compensation / Stock Option Committee
   Corporate Governance & Nominating Committee Chairman