1. Division of Anesthesiology, University Hospitals of Geneva (HUG), Geneva, Switzerland.
2. Division of Clinical Epidemiology, University Hospitals of Geneva (HUG), Geneva, Switzerland.
3. Department of Anaesthesiology, University Hospital Centre of Lausanne (CHUV), Lausanne, Switzerland.
4. Department of Anaesthesiology, Hospital of Sion, Sion, Switzerland.
5. Department of Emergency Medicine, Inselspital Bern, Bern, Switzerland.
6. Fresenius Kabi Switzerland, Oberdorf, Switzerland.
7. Department of Anaesthesia and Intensive Care Medicine, University Hospital Basel (USB), Basel, Switzerland.
8. Division of Surgical Intensive Care, Kantonsspital Winterthur, Winterthur, Switzerland.
9. Division of Intensive Care, Kantonsspital Graubünden, Chur, Switzerland.
10. Division of Surgical Intensive Care, Kantonsspital Luzern, Luzern, Switzerland.
11. Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland.
12. Department of Psychiatry, Beth Israel Deaconess Medical Center and Massachusetts Mental Health Center, Harvard Medical School, Boston, Massachusetts.
13. Department of Psychology, Harvard University, Cambridge, Massachusetts.
14. Emergency Department, Kantonsspital St. Gallen, St. Gallen, Switzerland.