1. Department of Advanced Biomedical Sciences; Federico II University; Naples Italy
2. Division of Cardiology; SS Trinità Hospital; Borgomanero Italy
3. Cardiology Unit; Card. G. Panico Hospital; Tricase Italy
4. Division of Cardiology; Rivoli Hospital; Rivoli Italy
5. Department of Cardiac, Thoracic and Vascular Sciences; University of Padua; Padua Italy
6. Department of Cardiology; Monaldi Hospital, AORN Ospedali dei Colli; Naples Italy
7. Casa di Cura Montevergine, Electrophysiology Department; Mercogliano Italy
8. Fondazione Poliambulanza, Cardiology Department; Brescia Italy
9. Hospital Sant'Anna, Electrophysiology and Cardiac Stimulation Department San Fermo della Battaglia; Italy
10. Cardiac Rhythm Management; Boston Scientific Italia; Milan Italy
11. Clinica Mediterranea, Laboratory of Electrophysiology; Naples Italy