McKesson Completes Acquisition of Per-Se Technologies, Inc.

January 26, 2007

SAN FRANCISCO--(BUSINESS WIRE)--McKesson Corporation (NYSE:MCK) announced that it has successfully completed the previously announced acquisition of Per-Se Technologies, Inc. (NASDAQ:PSTI) in an all-cash transaction that closed today.

About McKesson

McKesson Corporation (NYSE:MCK) is a Fortune 16 healthcare services and information technology company dedicated to helping its customers deliver high-quality healthcare by reducing costs, streamlining processes and improving the quality and safety of patient care. Over the course of its 174-year history, McKesson has grown by providing pharmaceutical and medical-surgical supply management across the spectrum of care; healthcare information technology for hospitals, physicians, homecare and payors; hospital and retail pharmacy automation; and services for manufacturers and payors designed to improve outcomes for patients. For more information, visit us at www.mckesson.com.