PART III

Item 10. Directors and Executive Officers of the Registrant

Information concerning the directors of the Company is incorporated by reference to the information in the Company’s Proxy Statement to be filed on or before April 30, 2003 (the “Proxy Statement”) appearing under the caption “Election of Directors.”

Executive Officers of the Registrant

Officers of the Company are elected annually by the Board of Directors and hold office at the discretion of the Board of Directors.  The following persons serve as executive officers of the Company:

Kenneth W. Freeman (52) is Chairman of the Board and Chief Executive Officer of the Company. Mr. Freeman joined the Company in May 1995 as President and Chief Executive Officer, was elected a Director in July 1995 and was elected Chairman of the Board in December 1996. Prior to 1995, he served in a variety of financial and managerial positions at Corning, which he joined in 1972. He was elected Controller and a Vice President of Corning in 1985, Senior Vice President in 1987, General Manager of the Science Products Division in 1989 and Executive Vice President in 1993. He was appointed President and Chief Executive Officer of Corning Asahi Video Products Company in 1990.

Surya N. Mohapatra, Ph.D. (53) is President and Chief Operating Officer and a Director of the Company. Prior to joining the Company in February 1999 as Senior Vice President and Chief Operating Officer, he was Senior Vice President of Picker International, a worldwide leader in advanced medical imaging technologies, where he served in various executive positions during his 18-year tenure.  Dr. Mohapatra was appointed President and Chief Operating Officer in June 1999.

Robert A. Hagemann (46) is Vice President and Chief Financial Officer. He joined Corning Life Sciences, Inc., in 1992, where he held a variety of senior financial positions before being named Vice President and Corporate Controller of the Company in 1996. Prior to joining the Company, Mr. Hagemann was employed by Prime Hospitality, Inc. and Crompton & Knowles, Inc. in senior financial positions. He was also previously associated with Ernst & Young. Mr. Hagemann assumed his present responsibilities in August 1998.

Gerald C. Marrone (60) is Senior Vice President, Administration. Mr. Marrone joined the Company in November 1997 as Chief Information Officer, after 12 years with Citibank, N.A. While at Citibank, he was most recently Vice President, Division Executive for Citibank's Global Production Support Division, and was also the Chief Information Officer of Citibank's Global Cash Management business. Prior to joining Citibank, he was the Chief Information Officer for Memorial Sloan-Kettering Cancer Center in New York for five years.

Michael E. Prevoznik (41) is Vice President for Legal and Compliance and General Counsel. Prior to joining SBCL in 1994 as its Chief Legal Compliance Officer, Mr. Prevoznik was with Dechert Price & Rhodes. In 1996, he became Vice President and Chief Legal Compliance Officer for SmithKline Beecham Healthcare Services. In 1998, he was appointed Vice President, Compliance for SmithKline Beecham, assuming additional responsibilities for coordinating all compliance activities within SmithKline Beecham worldwide. Mr. Prevoznik assumed his current responsibilities with the Company in August 1999.

David M. Zewe (51) is Senior Vice President, Diagnostics Testing Services.  He leads the newly-formed Hospital Business Team and oversees diagnostic testing operations company-wide, including physician, hospital, international and drugs of abuse testing.  Mr. Zewe joined the Company in 1994 as General Manager of the Philadelphia regional laboratory, became Regional Vice President Sales and Marketing for the mid-Atlantic region in August 1996, became Vice President, Revenue Services in August 1999 leading the billing function company-wide and became Senior Vice President, U.S. Operations in January 2001, responsible for all core business operations and revenue services.  Mr. Zewe assumed his current position in May 2002.  Prior to joining the Company, Mr. Zewe was with the Squibb Diagnostics Division of Bristol Myers Squibb, most recently serving as Vice President of Sales.