1. Cardiac Electrophysiology and Pacing Unit, ASST Papa Giovanni XXIII , Piazza OMS 1, Bergamo 24127 , Italy
2. Department of Cardiac, Thoracic Vascular Sciences and Public Health University of Padova , Padova , Italy
3. Cardiology Unit, ‘Card. G. Panico’ Hospital , Tricase (Le) , Italy
4. Department of Translational Medical Sciences, University of Campania ‘Luigi Vanvitelli,’ Monaldi Hospital , Naples , Italy
5. Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Policlinico S. Orsola-Malpighi , Bologna , Italy
6. Arrhythmia and Electrophysiology Unit, IRCCS Fondazione Policlinico S. Matteo , Pavia , Italy
7. Institute of Internal Medicine and Cardiology, University Hospital of Florence , Florence , Italy
8. Cardiology Department, Policlinico ‘G. Rodolico—San Marco’ , Catania , Italy
9. Arrhythmia and Electrophysiology unit, Arrhythmia and Electrophysiology Unit, Cardiothoracic Department, IRCCS Galeazzi-S. Ambrogio , Milan , Italy
10. Cardiology, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza , Rome , Italy
11. Cardiology Division, U.O.S.V.D. Cardiac Electrophysiology, ‘Vito Fazzi’ Hospital , Lecce , Italy
12. Cardiology Division, A.O. Brotzu , Cagliari , Italy
13. ‘M. Vittoria’ Hospital , Torino , Italy
14. ‘Unità Operativa di Elettrofisiologia, Studio e Terapia delle Aritmie’, Monaldi Hospital , Naples , Italy
15. Department of Clinical cardiology and Electrophysiology, ASST Rhodense , Rho-Garbagnate Milanese (MI) , Italy
16. Second Cardiology Division, Cardio-Thoracic and Vascular Department, University Hospital of Pisa , Pisa , Italy
17. Rhythm Management Division, Boston Scientific , Milan , Italy