1 Center for Diagnosis and Treatment of Cardiomyopathies, Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano-Isontina (ASUGI), member of the European Reference Network for Rare, Low-Prevalence, or Complex Diseases of the Heart (ERN GUARD-Heart), University of Trieste, Italy. (T.M.C., M.G., M.D.F., M. Merlo., A.P., G.S.).
2 Division of Cardiology, Ospedale Santa Chiara, Azienda Sanitaria Universitaria Integrata del Trentino (ASUIT), Trento, Italy (M.I., M. Moretti).
3 Cardiology Unit, Health District of Mesagne, Mesagne, Italy (S.D.).
4 Cardiology Unit, Cardiovascular Department, Azienda Socio Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy (A.I., A.M.).
5 Division of Cardiology, Cardiovascular Institute and Adult Medical Genetics Program, University of Colorado Anschutz Medical Campus, Aurora (L.M.).