1 Department of Cardiology, Hospital S. Maria della Misericordia, Perugia, Italy.
2 Department of Cardiology, Hospital S. Maria della Misericordia, Perugia, Italy; Fondazione Umbra Cuore e Ipertensione-ONLUS, Perugia, Italy. Electronic address: verdecchiapaolo@gmail.com.
3 Department of Medicine and Technological Innovation (DiMIT), University of Insubria, Varese, Italy; Department of Medicine and Cardiopulmonary Rehabilitation, Maugeri Care and Research Institute, IRCCS Tradate (VA), Italy.