1. Emergency Department, Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
2. Department of Medicine, Catholic University of the Sacred Heart, 00168 Rome, Italy
3. Gastroenterology Unit, Policlinico Universitario Tor Vergata, 00133 Rome, Italy
4. Department of Emergency Medicine, Ospedale San Carlo di Nancy, GVM Care and Research, 00165 Rome, Italy
5. Geriatric Medicine Residency Program, University of Rome “Tor Vergata”, 00133 Rome, Italy
6. Emergency Medicine and Surgery, IRCCS Fondazione Policlinico San Matteo, 27100 Pavia, Italy