1 Department of Translational Medical Sciences, University of Naples, Federico II, Italy; Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy.
2 Syncope Unit, Geriatric Cardiology and Medicine, University of Florence and Azienda Ospedaliero Universitaria Careggi, Florence, Italy.
3 Department of Geriatrics, Neurosciences and Orthopedics, Catholic University of the Sacred Heart, Rome, Italy.
5 Medicine and Geriatric Unit, Spedali Civili of Brescia, Brescia, Italy.
6 Geriatric Unit, Santa Chiara Hospital, Trento, Italy.
7 Department of Health Sciences, University of Milano Bicocca, Acute Geriatric Unit, San Gerardo Hospital, Monza; Milan Center for Neuroscience (Neuro-Mi), Milan, Italy.
8 SCDU Geriatria e Malattie Metaboliche dell'Osso, Città della Salute e della Scienza-Molinette, Torino, Italy.
9 Centro di Valutazione e Ricerca Gerontologica, Chair of Geriatrics, University of Modena and Reggio Emilia, Emilia-Romagna, Italy.
10 Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Campobasso, Italy; Syncope Unit, Geriatric Cardiology and Medicine, University of Florence and Azienda Ospedaliero Universitaria Careggi, Florence, Italy.
11 Department of Translational Medical Sciences, University of Naples, Federico II, Italy.