1. Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Italy
2. Mediterranea Cardiocentro, Napoli, Italy
3. Department of Cardiology, Santa Maria Goretti Hospital, Latina, Italy
4. IRCCS Neuromed, Pozzilli (IS), Italy
5. Division of Cardiology, Policlinico Casilino, Rome, Italy