1. From the Cardiology Division, Department of Medicine, Massachusetts General Hospital (S.E.), Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital (D.L.B., L.M.), Smith Center for Outcomes Research in Cardiology, Department of Medicine, Beth-Israel Deaconess Medical Center (R.W.Y.), Harvard Medical School, Boston, MA (S.E., D.L.B., R.W.Y., L.M.); Baim Institute for Clinical Research, Boston, MA (S.E., G.D., Y.L., W.-H.H., R.W.Y., L.M.); Department of Biostatistics...