From the Department of Cardiac, Thoracic and Vascular Sciences, University of Padova
Medical School, Padova, Italy (D.C., B.B., C.Basso, G.T.); Heart Center Osnabrück-Bad
Rothenfelde, Marienhospital Osnabrück, Osnabrück, Germany (T.W.); New England Cardiac
Arrhythmia Center, Tufts University School of Medicine, Boston, MA (M.S.L., N.A.M.E.);
ICIN-Netherlands Heart Institute, Utrecht, The Netherlands (R.N.W.H.); University
of Pennsylvania Health System, Philadelphia, PA (F.M.); First Cardiology Department,
University of Athens, Medical School, Athens, Greece (A.A.); Cardiovascular Center,
University Hospital Zurich, Zurich, Switzerland (C. Brunckhorst, C.S., F.D.); Yannis
Protonotarios Medical Centre, Hora Naxos, Greece (A.T., N.P.); Johns Hopkins Hospital,
Baltimore, MD (H.T., H.C.); University Hospital of Münster, Münster, Germany (M.P.);
Center of Sports Sciences, Rome, Italy (A.P.); The Heart Hospital, London, UK (W.J.M.);
and University of Arizona, Tucson (F.I.M.).