1 Department of Cardiovascular Sciences, University Sapienza, Rome, Italy. Electronic address: [email protected].
2 Department of Clinical and Experimental Medicine, University of Messina, AOU Policlinico "G. Martino", Messina, Italy.
3 Department of Neuroscience, Imaging and Clinical Sciences, 'G. D'Annunzio' University of Chieti-Pescara, Italy; Department of Cardiology, "SS. Annunziata Hospital", ASL 2 Abruzzo, Chieti, Italy.