1. Cardiology Department, Grande Ospedale Metropolitano, AO Bianchi Melacrino Morelli, 89129 Reggio Calabria, Italy
2. Cardiology Department De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
3. Operative Unit of Cardiology, P. Borsellino Hospital, 91025 Marsala, Italy
4. Clinical and Rehabilitation Cardiology Department, San Filippo Neri Hospital, ASL Roma 1, 00135 Roma, Italy
5. Cardiology Department, Ospedale Mauriziano, 10128 Turin, Italy
6. Cardiology Department, Nuovo Ospedale Versilia Lido di Camaiore Lucca, 55049 Camaiore, Italy
7. Cardiology Department, Cannizzaro Hospital, 95126 Catania, Italy
8. Arrhytmia Unit, Division of Cardiology, Ospedale San Paolo, Azienda Sanitaria Locale 2, 17100 Savona, Italy
9. Fondazione Toscana G. Monasterio, 56124 Pisa, Italy
10. Cardiology Division Valduce Hospital, 22100 Como, Italy
11. Department of Cardiology, Azienda Ospedaliera Brotzu, 09047 Cagliari, Italy
12. Cardiology Unit, Giovanni Paolo II Hospital, 88046 Lamezia, Italy
13. Integrated Cardiology Services, Department of Cardio-Thoracic-Vascular, Azienda Ospedaliera San Camillo Forlanini, 00152 Rome, Italy
14. Cardiology Unit, Ospedale Santa Croce e Carle, 12100 Cuneo, Italy
15. Division of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri, IRCCS, 28010 Gattico-Veruno, Italy
16. Cardiovascular Prevention and Ortokinesis Clinics of Lecce, 73043 Lecce, Italy
17. Cardiology Unit, Ospedale del Mare, 80147 Napoli, Italy
18. Cardiovascular Research Institute, Maastricht University, 6211 LK Maastricht, The Netherlands
19. Cardiovascular Department, Sant’Anna e San Sebastiano Hospital, 81100 Caserta, Italy
20. Department of Cardiology, General Regional Hospital “F. Miulli”, 70021 Bari, Italy
21. Cardiology Department, Garibaldi Nesima Hospital, 95122 Catania, Italy