1. Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Division of Cardiology, Beth Israel Deaconess Medical Center (R.A., R.W.Y.), Brigham and Women’s Hospital, Harvard Medical School, Boston, MA.
2. Heart and Vascular Center (R.A.), Brigham and Women’s Hospital, Harvard Medical School, Boston, MA.
3. Thrombolysis in Myocardial Infarction Study Group, Division of Cardiovascular Medicine (C.T.R., M.G.P.), Brigham and Women’s Hospital, Harvard Medical School, Boston, MA.
4. Thrombosis Research Institute, London, United Kingdom (S.V., A.K.K., G.K.).
5. Faculty of Pharmacy, University of Montreal, Canada (S.P.).
6. Division of Surgery, University College London, United Kingdom (A.K.K.).
7. StatSciences Inc, Notre-Dame-de-l’Île-Perrot, Canada (M.D.).