1. Department of Anesthesia and Critical Care, University Hospital San Luigi Gonzaga, University of Turin, Italy;
2. Bicocca Center of Bioinformatics, Biostatistics and Bioimaging (B4 center) and
3. School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy;
4. Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, India;
5. Department of Anesthesiology and Pain Medicine, Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada;
6. Department of Anesthesia and Pain Management, Toronto General Hospital, Toronto, Ontario, Canada;
7. Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, Minnesota;
8. Médecine Intensive Réanimation, University Hospital Center, Nantes, France;
9. Department of Anesthesiology and Intensive Care, Central Clinical Hospital of the Ministry of Interior and Administration, Warsaw, Poland;
10. Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland;
11. Health Centre for Human and Applied Physiological Sciences, Department of Adult Critical Care, Guy's and St. Thomas’ National Health Service Foundation Trust, London, United Kingdom;
12. Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany;
13. Anesthesia and Intensive Care, San Martino Policlinico Hospital, Istituto di Ricovero e Cura a Carattere Scientifico per l'Oncologia e le Neuroscienze, Genoa, Italy;
14. Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy;
15. Anesthesia and Intensive Care, Policlinico Vittorio Emanuele San Marco University Hospital, Catania, Italy;
16. Anaesthesia and Intensive Care Medicine, Warrington & Halton Teaching Hospitals National Health Service Foundation Trust, Warrington, United Kingdom;
17. Department of Anaesthesiology and Pain Therapy, Bern University Hospital, University of Bern, Bern, Switzerland;
18. School of Medicine, Sigmund Freud University Vienna, Vienna, Austria;
19. Dipartimento di Anestesia, Rianimazione ed Emergenza-Urgenza, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy;
20. Department of Anesthesiology, Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda, Milan, Italy;
21. Department of Emergency and Intensive Care, University Hospital San Gerardo, Monza, Italy;
22. Regenerative Medicine Institute at CURAM Centre for Medical Devices, School of Medicine, National University of Ireland Galway, Galway, Ireland; and
23. Anesthesia and Intensive Care Medicine, University Hospital Galway, Galway, Ireland