1. From the Policlinico San Donato IRCCS, Cardiovascular Center E. Malan, University of Milano, Italy (S.T., V.R., V.G.); University of Michigan Health System, Ann Arbor (K.A.E., T.T.T., J.B.F., J.V.C., D.M., G.R.U.); University Hospital Rostock, Rostock, Germany (C.A.N.); University of Pennsylvania, Philadelphia (R.E.P.); Yale University School of Medicine, New Haven, Conn (F.H.W.J., B.E.M.); University of Tokyo, Tokyo, Japan (T.S.); Brigham and Women's Hospital, Boston, Mass (P.T.O.); St. Michael's...