2 Division of Cardiology Ospedale degli Infermi, ASL, 13875, Biella, Italy.
3 Cardiology Department, Santa Maria delle Grazie Hospital Pozzuoli, Napoli; Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
6 Cardiology Department, Leiden University Medical Center, Leiden, The Netherlands; Department of Cardiology, San Giovanni Battista Hospital, Foligno, Italy.
7 Cardiology Department, Santa Chiara Hospital, Trento, Italy.