1. Interdisciplinary Center for Health Sciences, Scuola Superiore Sant'Anna , piazza Martiri della Libertà 33, 56127 Pisa , Italy
2. Cardiology Division, Fondazione Toscana Gabriele Monasterio , via Moruzzi 1, 56124 Pisa , Italy
3. Department of Experimental and Clinical Medicine, University of Florence , 50121 Florence , Italy
4. Cardiovascular Department, San Donato Hospital , 52100 Arezzo , Italy
5. Department of Engineering and Architecture, University of Trieste , Trieste , Italy
6. Meyer University Hospital , 50139 Florence , Italy