1. Cardiology Unit, Big Metropolitan Hospital, BBM, Reggio Calabria, Italy
2. Cardiology Division, Cannizzaro Hospital, Catania, Italy
3. Division of Cardiology, S. Filippo Neri Hospital, Roma, Italy
4. Interventional Cardiology Department, Ospedale Santissima Annunziata, Cosenza, Italy
5. Cardiology Division, Azienda Sanitaria Universitaria Integrata di Udine, Italy
6. Cardiology Unit, Papa Giovanni XXIII Hospital Bergamo, Italy
7. Cardiothoracic Department, Maastricht University Hospital, Maastricht, the Netherlands
8. Division of Cardiology, Augusto Murri Hospital, Fermo, Italy
9. Division of Cardiology, S. Giovanni Evangelista Hospital, Tivoli, Roma, Italy
10. Division of Cardiology, Garibaldi-Nesima Hospital, Catania, Italy
11. Heart Care Foundation, HCF ONLUS, Florence, Italy