Paul F. LeFort (A) (C)
Lead Independent Director
Retired Chief Information Officer,
UnitedHealth Group, Incorporated
Paul F. LeFort has been a director since April 1999. From October 1995 until he retired in January 2000, Mr. LeFort served as the Chief Information Officer for UnitedHealth Group Incorporated, a health and well being company. Mr. LeFort is currently performing independent consulting services to a variety of venture capital firms and healthcare-related technology organizations. From November 1994 to October 1995, Mr. LeFort was the Senior Vice President and Chief Information Officer for The MetraHealth Companies, Inc., jointly owned by Travelers Insurance Company and Metropolitan Life Insurance Company. From 1975 to 1994, Mr. LeFort served as a senior partner at Deloitte & Touche Management Consulting for Health Care Information Systems. Mr. LeFort received his B.S. in Physics and Economics from Boston College in 1962.

Nancy H. Handel (C) (N)
Retired Chief Financial Officer,
Applied Materials, Inc.
Nancy H. Handel has been a director since April 2007. Ms. Handel was the Senior Vice President, Chief Financial Officer of Applied Materials, Inc., a supplier of equipment and services to the global semiconductor industry, from October 2004 through November 2006. From November 2006 to January 2007, Ms. Handel served as Senior Vice President, Finance at Applied Materials and assisted in the transition with their new Chief Financial Officer. She retired from Applied Materials in January 2007. From 1985 to October 2004, she served in various key financial leadership positions at Applied Materials, including four years as Deputy Chief Financial Officer, Corporate Controller and Principal Accounting Officer, and 13 years as Treasurer. Prior to joining Applied Materials, Ms. Handel held various financial management positions with Raychem Corporation, an electronics manufacturer, Crown Zellerbach Corporation, a paper manufacturing company, and two private early stage companies. Ms. Handel currently serves on the board of directors of one other public company: Broadcom Corporation. Ms. Handel received a B.S. in Economics from Purdue University and an M.B.A. from The Ohio State University, and is a graduate of the Stanford Executive Program.

L. William Krause (C-Chair)
Retired Chairman, Chief Executive Officer and President,
3Com Corporation
L. William Krause has been a director since July 2005. Mr. Krause has been President of LWK Ventures, a private investment firm since 1991. In addition, Mr. Krause served as Chairman of the Board of Caspian Networks, Inc., an IP networking systems provider, from April 2002 to September 2006 and as Chief Executive Officer from April 2002 until June 2004. From September 2001 to February 2002, Mr. Krause was Chairman and Chief Executive Officer of Exodus Communications, Inc., which he guided through a Chapter 11 Bankruptcy to a sale of assets. He also served as President and Chief Executive Officer of 3Com Corporation, a global data networking company, from 1981 to 1990, and as its Chairman from 1987 to 1993, when he retired. Mr. Krause currently serves on the board of directors of four other public companies: Brocade Communications Systems, Inc., Core-Mark Holding Company, Inc., Packeteer, Inc. and Sybase, Inc. Mr. Krause received his B.S. in Electrical Engineering from The Citadel in 1963.

Donald J. Lothrop (N-Chair)
Partner,
New Vista Partners
Donald J. Lothrop has been a director since April 1998. Mr. Lothrop has been a Partner of New Vista Partners, LLC since November 2006, a General Partner of Delphi Management Partners II, L.P. since July 1994, a Managing Member of Delphi Management Partners III, L.L.C. since March 1995, a Managing Member of Delphi Management Partners IV, L.L.C. since October 1997 and a Managing Member of Delphi Management Partners V, L.L.C. since April 2000, all of which are venture capital firms. From January 1991 to June 1994, Mr. Lothrop was a Partner of Marquette Venture Partners, a venture capital firm, where he focused on the healthcare industry. From 1989 to 1990, Mr. Lothrop worked at Bain & Company, Inc., a management consulting firm. Mr. Lothrop currently serves on the board of directors of one other public company: Matria Healthcare, Inc. Mr. Lothrop received his B.S. in Accounting from Pennsylvania State University in 1981 and his M.B.A. from Harvard Business School in 1989.

Jerry P. Widman (A) (C)
Retired Chief Financial Officer,
Ascension Health
Jerry P. Widman has been a director since March 2005. From 1982 to 2001, Mr. Widman served as the Chief Financial Officer of Ascension Health, a large U.S. not-for-profit multi-hospital system. Prior thereto, Mr. Widman was a management consultant with Ernst & Young LLP for twelve years. Mr. Widman currently serves on the board of directors of one other public company: Cutera, Inc. Mr. Widman received a B.A. in Business from Case Western Reserve University in 1965, a J.D. from Cleveland State University in 1969, and an M.B.A. from the University of Denver in 1970. He received his attorney's license from the State of Ohio in 1970 and his Certified Public Accountant certification from the State of Ohio in 1982.

(A) Audit Committee
(C) Compensation Committee
(N) Nominating and Corporate Governance Committee

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