Director since 2007 Former CEO of medical device companies, Former Divisional Vice-President and General Manager age 67 Abbott Laboratories From February 2013 through November 2019, Mr. Johnson served as Chief Executive Officer and Director of Admittance Technologies, Inc., a medical device company. From February 2008 to May 2012, Mr. Johnson served as President, CEO and Director of Cardiokinetix, Inc., a developer of medical devices for the treatment of congestive heart failure. From October 2005 to February 2008, Mr. Johnson served as General Manager of Abbott Spine, S.A., a division of Abbott Laboratories. From June 2003 to October 2005, Mr. Johnson served as Division Vice President, Finance for Abbott Spine, a division of Abbott Laboratories. From May 1999 to June 2003, he served as Vice President of Operations and Chief Financial Officer for Spinal Concepts. From 2003 to 2007, Mr. Johnson served as a member of the Board of RITA Medical Systems, Inc. and Chairman of its Audit Committee. Mr. Johnson holds a B.B.A. in Accounting from Texas A&M University and became a certified public accountant in 1981. Mr. Johnson is chairman of our Audit Committee and a member of our Nominating, Compliance and Corporate Governance Committee. Director Qualifications: Mr. Johnson s service as CFO for Spinal Concepts, General Manager and Division Vice President for Abbott Laboratories and CEO of two separate medical device companies, provides valuable business, leadership and management experience, particularly with respect to the numerous financial, business and strategic issues faced by a diversified medical device company. In addition, Mr. Johnson's experien