1. Cardiovascular Disease Unit, IRCCS Ospedale Policlinico San Martino IRCCS Italian Cardiology Network Genoa Italy
2. Department of Health Sciences, Section of Biostatistics University of Genova Genoa Italy
3. Department of Internal Medicine University of Genova Genoa Italy
4. Cardiology Unit, ASST Spedali Civili and Department of Medical and Surgical Specialties, Radiological Sciences and Public Health University of Brescia Brescia Italy
5. Cardiology Division, Cardiovascular Department Ospedale Papa Giovanni XXIII Bergamo Italy