1 Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo dei Tintori - University of Milano-Bicocca, Monza, Italy. Electronic address: alberto.lucchini@unimib.it.
2 Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo dei Tintori - University of Milano-Bicocca, Monza, Italy.
3 Department of Health Sciences, University of Florence, Florence, Italy.