FRANKLIN LAKES, N.J. & BURLINGTON, N.C.--(BUSINESS WIRE)--Medco Health Solutions Inc. (NYSE:MHS) and Laboratory Corporation of America® Holdings (LabCorp®) (NYSE:LH) announced a strategic research agreement today to advance the field of pharmacogenomics, an emerging science integrating genetics and drug treatment that is leading the way toward personalized medicine. The research effort, which will be centered on tamoxifen, is the latest in a rapidly growing field of studies linking individual genetics to the safety and efficacy of specific prescription drugs. Genotyping for the study will be performed using the FDA-cleared Roche AmpliChip® CYP450 test.