1. Mo i Rana Hospital Helgeland Hospital Trust Mo i Rana Norway
2. Anaesthesia and Critical Care Research Group Faculty of Health Sciences University of Tromsø Tromsø Norway
3. Sørlandet Hospital Kristiansand Kristiansand Norway
4. Clinic of Emergency Medical Services University Hospital of North Norway UNN Hospital Trust Tromsø Norway
5. Hammerfest Hospital Department of Anaesthesiology and Intensive Care Finnmark Health Trust Hammerfest Norway
6. Norwegian National Advisory Unit on Trauma Division of Emergencies and Critical Care Oslo University Hospital Oslo Norway