1. Gérontopôle, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
2. Université de Toulouse III Paul Sabatier, Toulouse, France
3. Department of Geriatrics, Neurosciences and Orthopedics, Catholic University of the Sacred Heart, Rome, Italy
4. Memory Clinic, Department of Neurology and Psychiatry, Sapienza University, Rome, Italy
5. Department of Medical and Surgical Sciences for Adults and Children, Clinic of Infectious Diseases, University of Modena and Reggio Emilia, Modena, Italy