1. Department of Emergency Medicine, ASST Grande Ospedale Metropolitano Niguarda, University of Milano-Bicocca, Milan, Italy
2. Geriatric Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
3. Department of Emergency Medicine, ASST Papa Giovanni XXIII, Bergamo, Italy
4. Department of Emergency Medicine, IRCCS Azienda Ospedaliera Universitaria San Martino—IST, Genova, Italy
5. Department of Emergency Medicine, Ospedale San Donato, Arezzo, Italy
6. Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
7. Department of Emergency Medicine, Ospedale Morgagni-Pierantoni, Forlì, Italy