Terry Mulligan has served as one of our directors since June 1999, and currently serves as Vice-Chairman of the Board of Directors and Chairman of the Senior Advisory Board. Additionally, he also serves as Chairman of the Compensation, Governance and Nominating Committee. Mr. Mulligan retired in 1996 from Baxter International, after serving 26 years with the company where he was Group Vice President of Health Systems, and prior to that, was Senior Vice President of Corporate Sales and Marketing. He was a member of both the Senior Management and Operating Management Committees at Baxter International. Since 2008, Mr. Mulligan currently serves on the Board of Directors and Audit, Finance, Compensation and Governance Committees of Wellmark, Inc., headquartered in Des Moines, Iowa. Mr. Mulligan holds a B.S.S.E. from the University of Iowa. Mr. Mulligan served in the United States Army from 1968-1970 and was stationed in Heidelberg, Germany. Mr. Mulligan was awarded the Army Commendation Medal as a 1st. Lieutenant, for "Exceptionally Meritorious Service in Europe" in 1970.

Bruce (Toby) Wesson served as one of our directors since June 1999 and currently serves as Lead Director and Vice-Chairman of our Board of Directors and Chairman of the Audit Committee of the Board of Directors. Mr. Wesson is Founding Partner Emeritus and Senior Advisor at Galen Management, a healthcare venture firm, after serving as Managing Director from 1990 to 2011 as well as general partner of Galen Partners, L.P. over the same period. Mr. Wesson served over twenty-three years with the Corporate Finance Division of Smith Barney, Harris Upham & Co. Inc., an investment banking firm, most recently as Senior Vice President and Managing Director. While at Smith Barney, Mr. Wesson headed the "Major Account Group", which was responsible for many of the firm's largest accounts. He also chaired the Valuation Committee, which supervised all valuation opinions provided by the firm. Mr. Wesson served as a director of Chemtura Corporation from 1980 to 2010. Mr. Wesson serves as a Director and as a member of the Compensation and Audit Committees of Acura Pharmaceuticals, Inc., a specialty pharmaceutical company. In addition, Mr. Wesson has served as a Director (since 2006), including as Vice Lead Director (since 2008) and on the Compensation Committee of Derma Sciences, Inc., a manufacturer of dermatological products and also serves on the Board of Directors for several privately held companies. Mr. Wesson holds a B.A. from Colgate University and a M.B.A. from Columbia Graduate Business School.