1. Cardiology Section, Hospital “F. Perinei” Altamura, 70022 Altamura, Italy
2. Cardiology Unit, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy
3. Korian Italia, 70021 Acquaviva delle Fonti, Italy
4. Cardiac Surgery Unit, Policlinic University Hospital, 70124 Bari, Italy
5. Ospedale Generale Regionale “F. Miulli”, 70021 Acquaviva delle Fonti, Italy
6. Cardiology Unit, Policlinic University Hospital, Piazza Giulio Cesare 11, 70124 Bari, Italy
7. Cardiology Section, Hospital “S. Paolo”, 70124 Bari, Italy