1. From the Cardiovascular Division, Brigham and Women’s Hospital, Boston, MA (S.K., S.H.B., B.A.K., R.M.J., G.F.M., N.K.L., W.G.S., U.B.T.); Department of Cardiology, Leiden University Medical Centre, The Netherlands (A.F.A.A., K.Z.); Hôpital Cardiologique du Haut-Lévêque (CHU), Bordeaux-Pessac & L’Institut de RYthmologie et Modélisation Cardiaque (LIRYC), Institut Hospitalo-Universitaire (IHU), Bordeaux, France (J.-M.S., F.S.); Centre Hospitalier Universitaire de Nancy (J.-M.S.); Toulouse...