1. Department of Clinical, Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy;
2. Cardiology Unit, Cardiothoracic and Vascular Department (DICATOV) IRCCS, Ospedale Policlinico San Martino, Genoa, Italy;
3. Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy; and
4. Mediterranea Cardiocentro, Naples, Italy.