5 Università Cattolica del Sacro Cuore, Rome, Italy; Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.
6 Università Cattolica del Sacro Cuore, Rome, Italy; Geriatrics Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.
7 Università Cattolica del Sacro Cuore, Rome, Italy; Department of Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.