1 Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy.
2 Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy; URT-CNR, Department of Medicine, Consiglio Nazionale delle Ricerche of IFC, Viale Europa,. Electronic address: indolfi@unicz.it.