1 Neurodegenerative Disease Unit, Department of Basic Medicine, Neuroscience, and Sense Organs, University of Bari "Aldo Moro," Bari, Italy.
2 Department of Clinical Research in Neurology, University of Bari "Aldo Moro," "Pia Fondazione Cardinale G. Panico," Tricase, Lecce, Italy.
3 Geriatric Unit & Laboratory of Gerontology and Geriatrics, Department of Medical Sciences, IRCCS "Casa Sollievo della Sofferenza," San Giovanni Rotondo, Foggia, Italy.
4 Otolaryngology Unit, University of Bari "Aldo Moro," Bari, Italy.