1. Physical Medicine and Rehabilitation Division, Umberto I University Hospital of Rome, Italy
2. Unit of Physical Medicine and Rehabilitation, G. D’ Annunzio University of Chieti-Pescara, Department of Oral Medical Science and Biotechnology (DSMOB), Chieti, Italy
3. Physical Medicine and Rehabilitation, Department of Geriatrics, Neurosciences and Orthopedics, Catholic University of the Sacred Heart, 00100 Rome, Italy