1. Rehabilitation Unit, “Mons. L. Novarese” Hospital, Moncrivello, Vercelli, Italy
2. Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont, Novara, Italy
3. Istituto Auxologico Italiano, IRCCS, Department of Neurology and Neurorehabilitation S. Giuseppe Hospital, Piancavallo, Verbania, Italy
4. Department of Neurosciences, University of Turin, Turin, Italy