1. U.O. Scompenso Cardiaco e Cardiologia Clinica, Centro Cardiologico Monzino, IRCCS , Via Parea 4, 20138 Milan , Italy
2. Cardiovascular Department, Azienda Sanitaria Universitaria Giuliano—Isontina (ASUGI), University of Trieste , Via C. Costantinides 2, 34128 Trieste , Italy
3. Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano , Piazza Leonardo da Vinci 32, 20133 Milan , Italy
4. Clinical Cardiology, IRCCS Policlinico San Donato , Piazza E. Malan 2, 20097 Milan , Italy
5. Department of Biomedical Sciences for Health, University of Milan , Via Mangiagalli 31, 20133 Milan , Italy
6. Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan , Via della Commenda 19, 20122 Milan , Italy