1 Department of Cardiology, San Filippo Neri Hospital, Rome, Italy.
2 Department of Cardiovascular, Respiratory, Nephrological, Aenesthesiological and Geriatric Sciences "Sapienza" University of Rome, Rome. Electronic address: [email protected].
3 Department of Cardiology, Sandro Pertini Hospital, Rome, Italy.
4 Department of Cardiovascular, Respiratory, Nephrological, Aenesthesiological and Geriatric Sciences "Sapienza" University of Rome, Rome.