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