Guttorm Brattebø1, Johan Bergström2, Christopher Neuhaus3. 1. Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway; Department of Clinical Medicine, University of Bergen, Bergen, Norway; Norwegian National Advisory Unit on Trauma, Oslo University Hospital, Oslo, Norway. 2. Division of Risk Management and Societal Safety, Lund University, Lund, Sweden. 3. Department of Anesthesiology, University Hospital Heidelberg, Heidelberg, Germany. Electronic address: c.neuhaus@uni-heidelberg.de.