1. Department of Cardiac, Thoracic and Vascular Sciences; University of Padova; Padova Italy
2. Department of Cardiology; General Hospital of Conegliano; Treviso Italy
3. Department of Cardiology, Cà Foncello; Civil Hospital; Treviso Italy
4. Ospedale S. Maria della Misericordia; University of Udine; Udine Italy
5. Cardiovascular Department; University of Trieste; Trieste Italy
6. Department of Cardiology; Civil Hospital; Feltre Belluno Italy
7. Department of Cardiology; Santorso Civil Hospital; Thiene Vicenza Italy
8. Department of Cardiology; Mazzoni Civil Hospital; Ascoli Piceno Italy
9. Cardiology Department, Arrhythmia and Electrophysiology Unit; Santa Maria Della Misericordia Hospital; Rovigo Italy