[1] Federico II Univ Hosp, Dept Clin Med & Surg, I-80122 Naples, Italy
[2] Mediterranea Cardioctr, I-80122 Naples, Italy
[3] Federico II Univ Hosp, Dept Adv Biomed Sci, I-80131 Naples, Italy
[4] Univ Siena, Dept Med Biotechnol, Div Cardiol, I-53100 Siena, Italy
[5] Univ Milan, IRCCS Policlin San Donato Milanese, Dept Cardiol, Heart Failure Unit, I-20122 Milan, Italy
[6] Univ Modena & Reggio Emilia, Baggiovara Hosp, Div Cardiol, Nephrocardiovasc Dept, I-41121 Modena, Italy
[7] Univ Verona, Dept Med, Div Cardiol, I-37132 Verona, Italy
[8] Luigi Vanvitelli Univ, Umberto Hosp Nocera Inferiore Salerno 1, Div Cardiol, I-81100 Caserta, Italy