1. Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari Aldo Moro, Bari, Italy
2. Geriatric Unit & Laboratory of Gerontology and Geriatrics, Department of Medical Sciences, IRCCS “Casa Sollievo della Sofferenza”, San Giovanni Rotondo, Foggia, Italy
3. Psychiatric Unit, Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy
4. Geriatric Medicine-Memory Unit and Rare Disease Centre, University of Bari Aldo Moro, Italy
5. Otolaryngology Unit, University of Bari Aldo Moro, Italy
6. Psychiatric Unit, Department of Basic Medicine, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy
7. Department of Medicine Organization Geriatric Unit, CDCD, Dolo Hospital, Venezia, Italy
8. Department of Epidemiology and Biostatistics, National Institute of Gastroenterology “Saverio de Bellis”, Research Hospital, Bari, Italy
9. Institute of Neurology, Catholic University of Sacred Heart, Rome, Italy
10. Department of Clinical Research in Neurology, University of Bari Aldo Moro, “Pia Fondazione Cardinale G. Panico”, Lecce, Italy