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Chief Financial Officer United BioSource Corporation - Mr. Clein has served as a director of PSI since 1999. He has been Chief Financial Officer of United BioSource Corporation, a health care company, since November 2003. Previously, he was a partner in LCI Partners, a consulting and investment firm. Mr. Clein served as Executive Vice President and Chief Financial Officer of US Bioservices Corporation from May 2002 to January 2003 and as Chief Executive Officer of PMR Corporation from May 1999 to in May 2002. Mr. Clein previously served as Executive Vice President and Chief Financial Officer of PMR from May 1996 to May 1999. Prior to joining PMR, Mr. Clein was a Managing Director of Health Care Investment Banking for Jefferies & Co., an investment banking firm, from August 1995 to May 1996. Previously, Mr. Clein was a Managing Director of the investment banking firms of Rodman & Renshaw, Inc. (March 1995 to August 1995) and Mabon Securities Corp. (March 1993 to March 1995) and served as a Vice President with Sprout Group, an affiliate of Donaldson, Lufkin and Jenrette, Inc. (May 1991 to March 1993), and a Vice President and partner with Merrill Lynch Venture Capital, Inc. (1982 to February 1990 and August 1990 to February 1991). Mr. Clein holds a Masters of Business Administration degree from Columbia University and a Bachelors degree from the University of North Carolina.
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