1 Geriatric Fellowship Program, University of Milan, Milan, Italy.
2 Nephrology Dialysis and Kidney Transplantation Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
3 Department of Clinical Sciences and Community, University of Milan, Milan, Italy.
4 Nephrology Dialysis and Kidney Transplantation Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community, University of Milan, Milan, Italy.
5 Department of Clinical Sciences and Community, University of Milan, Milan, Italy; Geriatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.