aDepartment of Medical and Surgical Sciences, Magna Græcia University of Catanzaro

bDepartment of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende

cDivision of Cardiology, Department of Medicine, Università degli Studi di Napoli Federico II, Naples, Italy

Correspondence to Professor Ciro Indolfi, Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy. E-mail: [email protected]