1. Anesthesia and Critical Care research group Department of Clinical Medicine, UiT Arctic University of Norway Tromsø Norway
2. Department of Research and Education Norwegian Air Ambulance Foundation Drøbak Norway
3. Division of Surgical Medicine and Intensive Care University Hospital of North Norway Tromsø Norway
4. Department of Physiology & Biomedical Engineering Mayo Clinic Rochester MN USA
5. Department of Anesthesiology and Intensive Care Haukeland University Hospital Bergen Norway