1. Department of Anesthesia, Critical Care and Emergency, IRCCS (Institute for Treatment and Research) Ca’ Granda Maggiore Policlinico Hospital Foundation, Milan, Italy
2. Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
3. Department of Morphology, Surgery and Experimental Medicine, Section of Anesthesia and Intensive Care, University of Ferrara, Ferrara, Italy
4. Department of Emergency, San Gerardo Hospital, Monza, Italy; and
5. Department of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy