1. Population Health Unit, Salus in Apulia Study, National Institute of Gastroenterology Saverio de Bellis, Research Hospital, Castellana Grotte, Bari, Italy
2. Center for Neurodegenerative Diseases and the Aging Brain, Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy
3. Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
4. Geriatric Unit and Laboratory of Gerontology and Geriatrics, Department of Medical Sciences, Aging Network of Italian Research Hospitals, Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy
5. Hematology and Stem Cell Transplant Unit, Vito Fazzi Hospital, ASL Lecce, Lecce, Italy
6. Department of Clinical Research in Neurology, Pia Fondazione Cardinale G. Panico, Tricase, Lecce, Italy
7. Cesare Frugoni Internal and Geriatric Medicine and Memory Unit, University of Bari Aldo Moro, Bari, Italy
8. Otolaryngology Unit, Department of Basic Medical Science, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari, Italy
9. Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland