1. Department of Neuroscience, Section of Rehabilitation, University of Padova, Via Nicolò Giustiniani, 2, 35128 Padua, Italy
2. Neurology Unit, Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello, 90146 Palermo, Italy
3. Department of Clinical and Experimental Medicine, University of Messina, Piazza Pugliatti, 1, 98122 Messina, Italy
4. Physical Medicine and Rehabilitation School, University of Padova, Via Nicolò Giustiniani, 2, 35128 Padua, Italy