1. Department of Emergency and Intensive Care, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
2. Department of Medicine and Surgery, Università degli Studi di Milano-Bicocca, 20126 Monza, Italy
3. Department of Anesthesia and Intensive Care Medicine, Niguarda Hospital, 20162 Milan, Italy
4. Department of Anesthesia and Intensive Care, Santa Chiara Regional Hospital, APSS, 38122 Trento, Italy
5. Centre for Medical Sciences CISMed, University of Trento, 38122 Trento, Italy
6. Department of Emergency and Trauma Surgery, Niguarda Hospital, 20162 Milan, Italy
7. Department of Pathophysiology and Transplantation, Università degli Studi di Milano, 20100 Milan, Italy
8. Department of Emergency, Spedali Civili University Hospital, 25123 Brescia, Italy
9. General and Neurosurgical Intensive Care Units, Ospedale di Circolo, 21100 Varese, Italy
10. Department of Biotechnologies and Life Sciences, University of Insubria, ASST Sette Laghi, 21100 Varese, Italy
11. Department of Anesthesia and Intensive Care Medicine, Neuro Intensive Care, ASST Niguarda, 20162 Milan, Italy
12. Emergency Department, Emergency and Trauma Surgery, ASST Santi Carlo e Paolo, 20142 Milan, Italy
13. Regional Agency of Emergency and Urgency (AREU), 20124 Milan, Italy
14. Regional Agency of Emergency and Urgency (AREU), 27100 Pavia, Italy
15. Regional Agency of Emergency and Urgency (AREU), 24121 Bergamo, Italy
16. General and Emergency Surgery Department, Ospedale San Raffaele, 20132 Milan, Italy