1. Department of Medicine, University of Udine, Italy
2. Department of Anesthesia and Intensive Care, University Hospital of Udine, Italy, Udine, Italy
3. Anesthesiology, Intensive Care and Pain Medicine, University of Pavia Faculty of Medicine and Surgery, Pavia, Italy
4. Anesthesia and Intensive Care, University Hospital of Pavia, Italy
5. Anesthesia and Intensive Care, Hospital Saint-Giovanni Bosco Turin, Italy
6. Department of Clinical and Biological Sciences, University of Turin Faculty of Medicine and Surgery, Torino, Italy
7. Department of Medicine and Surgery, University of Parma Department of Medicine and Surgery, Parma, Italy
8. Department of Medicine, University of Udine Department of Biological and Medical Sciences, Udine, Italy
9. Department of Surgical, Oncological and Oral Science, University of Palermo Faculty of Medicine and Surgery, Palermo, Italy
10. Department of Anesthesia Intensive Care and Emergency, University Hospital Policlinic Paolo Giaccone, Palermo, Italy
11. Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, University of Pisa School of Medicine, Pisa, Italy
12. Department of Medicine and Surgery, University of Perugia School of Medicine and Surgery, Perugia, Italy
13. Department of Medicine and Surgery, University of Perugia Department of Medicine, Perugia, Italy
14. Anesthesiology and Intensive Care, University Hospital of Pavia, Italy
15. Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche, University of Pavia Faculty of Medicine and Surgery, Pavia, Italy
16. Department of Anesthesiology and Intensive Care, University of Milan, Milano, Italy
17. Anesthesia and Intensive Care Operative Unit, Hospital Saint-Martinus, Belluno, Italy
18. Department of Anesthesia and Intensive Care, University Hospital Agostino Gemelli Department of Surgical and Medical Sciences, Rome, Italy
19. UOC Anesthesia and Intensive Care Unit, University Hospital of Padua, Padua, Italy, Padua, Italy
20. Department of Anesthesia and Intensive Care, University of Genoa School of Medical and Pharmaceutical Sciences, Genova, Italy
21. Unit of Anaesthesia and intensive Care, Monaldi Hospital Naples, Italy, Naples, Italy
22. Anesthesia, Intensive Care and Pain Management, President Italian Society of Anesthesia, Analgesia, Resuscitation, and Intensive Care (SIAARTI), Rome Italy, Rome, Italy