1. Department of Cardiology; Maria Vittoria Hospital; Torino; Italy
2. Department of Cardiology; Ca’ Foncello Hospital; Treviso; Italy
3. Department of Cardiology; University of Brescia; Brescia; Italy
4. Department of Cardiology and Cardiac Surgery, Hospitals Joint, University of Ancona; Ancona; Italy
5. Department of Cardiology; Niguarda Ca’ Granda Hospital; Milano; Italy
6. Department of Cardiac Surgery; Sacco Hospital; Milano; Italy
7. Department of Cardiac Surgery; Molinette Hospital; University of Torino; Torino; Italy
8. Department of Cardiac Surgery; Mauriziano Hospital; Torino; Italy
9. Department of Cardio-Renal-Pulmonary, Hospital, University of Parma; Parma; Italy
10. Department of Cardiology; Reggio Emilia Hospital; Reggio Emilia; Italy
11. Department of Cardiology; Cervello Hospital; Palermo; Italy
12. Department of Cardiology; Giovanni Bosco Hospital; Torino; Italy
13. Department of Cardiology; Firenze Hospital; Firenze; Italy
14. Department of Cardiology; Ivrea Hospital; Ivrea; Italy
15. Department of Cardiology; Rimini Hospital; Rimini; Italy
16. Department of Cardiology; Senigallia Hospital; Senigallia; Italy
17. University of Infectious Diseases; Amedeo di Savoia Hospital; Torino; Italy