Dittamore brings a wealth of experience in accounting to the board. He retired in June 2001 from Ernst&Young LLP after 35 years, including 14 years as managing partner of the San Diego office and four years as managing partner of the Brussels office. Dittamore currently serves on the board of directors of Invitrogen Corporation, Gen-Probe Incorporated and Applied Molecular Evolution. Dittamore holds a bachelor of science degree from San Diego State University.