1. Centro Cardinal Ferrari, Fontanellato, Italy
2. Rehabilitation Medicine Service, Rehabilitation Geriatrics Department, NHS-University Hospital of Parma, Parma, Italy
3. Department of Medicine and Surgery, Unit of Neuroscience Interdepartmental Centre of Robust Statistics (Ro.S.A). University of Parma, Parma, Italy
4. Department of Medicine and Surgery, University of Parma, Parma, Italy