1. Cardiology Division“Giovan Battista Grassi” Hospital Rome Italy
2. "Unità Operativa di Elettrofisiologia, Studio e Terapia delle Aritmie", Monaldi Hospital Naples Italy
3. Cardiology DivisionUniversità Politecnica delle Marche Ancona Italy
4. Cardiology DivisionPoliclinico Casilino Rome Italy
5. Cardiology DivisionFondazione Poliambulanza Brescia Italy
6. Cardiology DivisionUniversity of Bari Bari Italy
7. Cardiology DivisionFondazione Policlinico S. Matteo IRCCS Pavia Italy
8. Cardiology DivisionSacro Cuore‐Don Calabria Hospital Verona Italy
9. CRM DivisionBoston Scientific Italia Milan Italy