1. Department of Cardiology Arrhythmology Center ASL 4 Chiavarese Lavagna‐Genova Italy
2. Cardiothoracovascular Department, Ospedale Policlinico San Martino Istituto di Ricovero e Cura a Carattere Scientifico per l'Oncologia Electrophysiology Unit Genova Italy
3. Department of Cardiology Arcispedale S. Maria Nuova Reggio Emilia Italy
4. Department of Cardiology Ospedale San Giovanni di Dio Firenze Italy