[1] San Raffaele Univ Hosp, Cardiol & Cardiothorac Surg Dept, Intervent Cardiol Unit, Via Olgettina 60, I-20133 Milan, Italy
[2] San Raffaele Univ Hosp, Div Internal Med & Clin Immunol, Milan, Italy
[3] San Raffaele Univ Hosp, Noninvas Cardiol Unit, Cardiol & Cardiothorac Surg Dept, Milan, Italy
[4] EMO GVM Ctr Cuore Columbus, Intervent Cardiol Unit, Milan, Italy