Rigatelli Zuin1, P Zonzin1, G Zuliani2, L Roncon1. 1. Department of Cardiology, Santa Maria Della Misericordia Hospital, Viale Tre Martiri 140, 45100 Rovigo, Italy. 2. Department of Translational Medicine, Section of Internal and Cardiopulmonary Medicine, University of Ferrara, Ferrara, Italy.