1 Physical and Rehabilitative Medicine, Department of Health Sciences, Scuola di Medicina, Università degli Studi del Piemonte Orientale, Novara, Italy.
2 Azienda Ospedaliero Universitaria Maggiore della Carità, Novara, Italy.
3 Department of Dynamic, Clinical Psychology and Health, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy.
4 Santa Lucia Foundation (IRCCS), Rome, Italy.
5 Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.