1. Clinical Trial Service Unit and Epidemiological Studies Unit (J.C.H., M.I., M.H., L.B., M.J.L., R.C.), Nuffield Department of Population Health, University of Oxford, United Kingdom.
2. Medical Research Council Population Health Research Unit (M.H., L.B.), Nuffield Department of Population Health, University of Oxford, United Kingdom.
3. Department of Genetics and Pharmacogenomics (P.M.S.), Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ.
4. TIMI Study Group, Division of Cardiovascular Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA (E.B., M.S.S.).
5. Cardiovascular Clinical Research (R.O.B.), Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ.