1. Department of Cardiovascular and Pulmonary Sciences, Catholic University of the Sacred Heart , Rome , Italy
2. Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS , Largo Agostino Gemelli, 1 , 00168 Rome, Italy
3. Department of Translational Medicine, University of Eastern Piedmont, Maggiore della Carità Hospital , Corso Mazzini 18, Padiglione A , 28100 Novara, Italy