1. Cardiovascular Department, San Donato Hospital , Via Pietro Nenni 22, 52100 Arezzo , Italy
2. Cardiology Division, Hôpitaux Universitaires de Genève , Geneva , Switzerland
3. Cardiomyopathy Unit, Careggi Hospital and Meyer Children’s Hospital IRCCS , Florence , Italy
4. Department of Experimental and Clinical Medicine, University of Florence , Florence , Italy
5. Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai , New York, NY , USA