1. Department of Scientific Research, Campus Ludes, Off-Campus Semmelweis University, 6912 Lugano–Pazzallo, Switzerland
2. Saint Camillus International University of Health and Medical Sciences, Rome, Italy
3. Department of Innovative Technologies in Medicine & Dentistry; University “G. d’Annunzio”; 66100 – Chieti-Pescara, Italy
4. 4. Geriatric Unit, Azienda Toscana Centro, Florence, Italy
5. Department of Medical and Surgical Specialties and Dentistry, University of Campania “Luigi Vanvitelli”, 80138 – Naples, Italy
6. 6. Department of Internal Medicine, ASL Teramo, Teramo, Italy
7. Department of Public Health, University of Naples Federico II, 80131 Naples, Italy
8. Longitudinal Studies Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, USA, Baltimore, MD 21224, USA