BURLINGTON, N.C.--(BUSINESS WIRE)--Laboratory Corporation of America® Holdings (NYSE: LH) today announced that it has received early termination from the Federal Trade Commission of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, or HSR Act, applicable to the acquisition of Genzyme Genetics, a business unit of Genzyme Corp. (NASDAQ: GENZ) by LabCorp.