1. From the Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston (C.C.Q., A.M.S., R.H.F., B.C., S.D.S.); Institute of Cardiology, University of Bologna and S. Orsola–Malpighi Hospital, Bologna, Italy (C.C.Q.); Scripps Research Institute, La Jolla, CA (J.N.B.); Cardiology and Geriatrics Sections, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC (D.W.K.); Department of Medicine–Geriatrics (T.H.M.) and Division of Cardiovascular...