1. From the Geriatric Unit and Gerontology-Geriatrics Research Laboratory (A.P., F.A., M.F., P.D., M.G.L.), Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy; Biostatistics and Gastroenterology Unit (G.L.), IRCCS “Saverio De Bellis,” Castellana Grotte, Italy; Salvatore Maugeri Foundation (G.R.), Scientific Institute of Telese Terme (BN), Italy; Center for Translational Medicine (G.R.), Thomas Jefferson University, Philadelphia, Pa; Department of Internal...