1. Department of Medicine and Surgery, University of Insubria, Varese, Italy
2. Department of Medicine and Cardiopulmonary Rehabilitation, Maugeri Care and Research Institute, IRCCS, Tradate, Italy
3. Division of Cardiology, Hospital S. Maria della Misericordia, Perugia, Italy
4. Fondazione Umbra Cuore E Ipertensione-ONLUS, Perugia, Italy
5. Department of Medicine, and Centro di Ricerca Clinica E Traslazionale (CERICLET), University of Perugia, Perugia, Italy