Mark Weinstein

President & CEO
Bio-Imaging Technologies, Inc.

Mr. Weinstein has served as the President and Chief Executive Officer of Bio-Imaging Technologies since February 1998 and has been a Director since March 1998. Mr. Weinstein also served as the Chief Financial Officer from January 2000 to February 2003. Mr. Weinstein joined Bio-Imaging in June 1997 as Senior Vice President of Sales and Marketing and was appointed Interim Chief Executive Officer in December 1997. Prior to joining Bio-Imaging in May 1997, he was the Chief Operating Officer of Internet Tradeline, Inc., an internet-based electronic solutions provider. From July 1991 to August 1996, Mr. Weinstein worked for Medical Economics Company, an international health care information company and wholly-owned division of The Thomson Corporation. He held several senior management positions at Medical Economics Company, serving finally as President and Chief Operating Officer of the International Group.