Dr. Lawrence retired from Kaiser Foundation Health Plan, Inc. and Kaiser Foundation Hospitals in 2002, having served as Chairman of the Board from 1992 and Chief Executive Officer from 1991. He held a number of management positions with these organizations prior to assuming these positions, including Vice Chairman of the Board and Chief Operating Officer. He was formerly a director of Agilent Technologies, Inc., Raffles Medical Group, Inc., PG&E Corporation and Dynavax Technologies Corporation. Dr. Lawrence has been a director of the Company since January 2004. He is a member of the Compensation Committee and the Finance Committee.