1. From the Interventional Cardiology Unit, Cardiovascular Department, Careggi University Hospital, Florence, Italy
2. From the Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
3. Division of Cardiology, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale (Eoc), Lugano, Switzerland; Department of Cardiology, University of Bern, Bern, Switzerland