1 Emergency Department, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
2 University of Milan, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.
3 Internal Medicine, Department of Biomedical and Clinical Sciences, Ospedale Luigi Sacco, University of Milan, and ASST Fatebenefratelli- Sacco, Milan, Italy. elisa.ceriani@asst-fbf-sacco.it.