1. Geriatrics Division, Department of Medicine (DIMED), University of Padova, Padova, Italy.
2. National Research Council, Aging Branch, Institute of Neuroscience, Padova, Italy.
3. Internal Medicine Division, Azienda Ospedaliera, Padova, Italy.
4. Department of Medicine (DIMED), Clinica Medica I, University of Padova, Padova, Italy.
5. Department of Cardiac, Thoracic and Vascular Sciences - Biostatistics, Epidemiology and Public Health Unit, University of Padova, Padova, Italy.