1. Cardiology Department, Cannizzaro Hospital, 95126 Catania, Italy
2. U.O.C. Cardiologia, Ospedale Garibaldi-Nesima, Azienda di Rilievo Nazionale e Alta Specializzazione “Garibaldi”, 95100 Catania, Italy
3. Cardiology Division, St Francesco Hospital, 87027 Paola, Italy
4. SC Cardiologia, Azienda Santa Croce e Carle, 12100 Cuneo, Italy
5. Cardiovascular Disease Unit, IRCCS Ospedale Policlinico San Martino, 16100 Genoa, Italy
6. Cardiology Department, San Giovanni Addolorata Hospital, 00184 Rome, Italy
7. Department of Cardiology, General Regional Hospital “F. Miulli”, Acquaviva delle Fonti, 70021 Bari, Italy
8. Department of Cardiology, Santa Chiara Hospital, APSS, 38121 Trento, Italy
9. Division of Cardiology, AULSS2 Marca Trevigiana, Ca’ Foncello Hospital, 31100 Treviso, Italy
10. U.O.C. Cardiologia Clinico Chirurgica (UTIC), A.O.U. Senese Ospedale Santa Maria alle Scotte, 53100 Siena, Italy
11. Division of Cardiology and Intensive Care Unit, Pugliese-Ciaccio Hospital, 88100 Catanzaro, Italy
12. Division of Cardiology, Cardiothoracic Department, Azienda Consorziale Ospedaliera-Universitaria, 70124 Bari, Italy
13. U.O.C. Cardiologia, Ospedale S. Spirito, 00123 Roma, Italy
14. Cardiology Unit, Azienda Sanitaria “Friuli Occidentale”, 33170 Pordenone, Italy
15. Cardiology Unit, S. Antonio Abate Hospital, ASP Trapani, 91016 Erice, Italy
16. Cardiovascular Department, Sant’Anna e San Sebastiano Hospital, 81100 Caserta, Italy
17. Cardiology Department, San Filippo Neri Hospital, ASL Roma 1, 00135 Rome, Italy
18. “A. De Gasperis” Cardiovascular Department, Division of Cardiology, ASST Grande Ospedale Metropolitano Niguarda, Piazza dell’Ospedale Maggiore 3, 20162 Milan, Italy