1. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA (A.M.S., G.L., M.A.P., S.D.S.); Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.); VA Medical Center, Minneapolis, MN (I.S.A.); University of Wisconsin Hospital and Clinics, Madison, WI (N.K.S.); Montreal Heart Institute, Montreal, Canada (E.O.); New York Methodist Hospital, Brooklyn, NY (J.F.H.); National Heart, Lung, and Blood Institute, Bethesda, MD (G.S.); New England Research Institutes,...