1. From the Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (A.K.C., C.M.G.); PERFUSE Angiographic Core Laboratories and Data Coordinating Center, Beth Israel Deaconess Medical Center, Boston, MA (A.K.C., C.A., C.M.G.); Duke Clinical Research Institute, Duke University, Durham, NC (M.V.G.-S., S.O., E.D., E.P.); American College of Cardiology, Washington, DC (A.P.); Division of Internal Medicine, Department of Medicine, Rush...