1. Cardiac Thoracic and Vascular Department - University Hospital of Pisa
2. Department of Cardiology, Sant’Ambrogio Clinical Institute
3. Department of Cardiology, Santa Maria della Misericordia University Hospital
4. Department of Cardiology, Santa Chiara Hospital in Trento
5. Laboratorio di Elettrofisiologia, Clinica Mediterranea
6. Department of Cardiology, Santa Maria Del Carmine Hospital
7. Department of Cardiology, Sandro Pertini Hospital
8. Department of Cardiology, Polyclinic Casilino of Rome
9. Department of Cardiology, Santa Maria Della Misericordia Hospital
10. Department of Cardiology, SS Trinita Hospital
11. Department of Cardiology, San Filippo Neri Hospital