1. From the Division of Cardiovascular Medicine, College of Medicine (S.J.D., J.M.A., R.M.C-D., E.M.H., C.J.P.), and Center for Pharmacogenomics, College of Pharmacy (Y.G.), University of Florida, Gainesville; Division of Cardiology, St Luke’s-Roosevelt Hospital Center and Columbia University, College of Medicine and Physicians (F.H.M.), New York, NY; Division of Clinical Cardiology, Jardínes Hospital de Especialidades (E.G.), Guadalajara, Mexico; and Abbott Laboratory (A.C., Q.Z.), Abbott Park, Ill.