1. From the Department of Biomedical and Surgical Sciences, Geriatric Unit, University of Verona, Verona, Italy (VDF, MZ, EZ, GM, AD, FO, LB, FF, and OB); the Laboratorio di Chimica Clinica ed Ematologia, Istituti Ospitalieri, Verona, Italy (PR); the Department of Internal Medicine and Geriatrics, University of Pavia, Pavia, Italy (SBS); and the Faculty of Sociology, University of Trento, Trento, It