BURLINGTON, N.C.--(BUSINESS WIRE)--Laboratory Corporation of America® Holdings (NYSE: LH) today announced the successful completion of the cash tender offer by its wholly owned subsidiary, OCM Acquisition Corp., for all outstanding shares of common stock of Orchid Cellmark Inc. (NASDAQ: ORCH). The initial offer period for the tender offer expired at 5:00 p.m., New York City time, on December 9, 2011.