1. U.O. Electrophysiology, ASST Rhodense , Viale Carlo Forlanini 95, 20024 Garbagnate Milanese (MI) , Italy
2. Institute of Cardiology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Policlinico S.Orsola-Malpighi , Bologna , Italy
3. Department of Translational Medical Sciences, University of Campania ‘Luigi Vanvitelli,’ Monaldi Hospital , Naples , Italy
4. ‘Unità Operativa di Elettrofisiologia, Studio e Terapia delle Aritmie’, Monaldi Hospital , Naples , Italy
5. Cardiology and Arrhythmology Clinic, Università Politecnica delle Marche , Ancona , Italy
6. Cardiology, Department of Clinical and Molecular Medicine, Sapienza University, St Andrea Hospital , Rome , Italy
7. Second Cardiology Division, Department of Cardio-Thoracic and Vascular, University Hospital of Pisa , Pisa , Italy
8. Cardiology Division, ‘Vito Fazzi’ Hospital , Lecce , Italy
9. Division of Cardiology, Castrovillari Hospital , Cosenza , Italy
10. Department of Heart and Vessels, Ospedale di Circolo e Fondazione Macchi , Varese , Italy
11. Department of Cardiac, Thoracic Vascular Sciences and Public Health University of Padova , Padua , Italy
12. Cardiac Electrophysiology and Pacing Unit, Papa Giovanni XXIII Hospital , Bergamo , Italy
13. Arrhythmia and Electrophysiology Unit, Cardiothoracic Department, Istituto Clinico Sant'Ambrogio , Milan , Italy
14. Arrhythmia and Electrophysiology and Experimental Cardiology, IRCCS Fondazione Policlinico ‘S. Matteo’ , Pavia , Italy
15. Ospedali Riuniti San Giovanni di Dio e Ruggi d’Aragona , Salerno , Italy
16. Boston Scientific , Milan , Italy
17. University of Florence , Florence , Italy