1. Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway;
2. National Centre for Emergency Primary Health Care, Uni Research, Bergen, Norway;
3. Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway;
4. Department of Clinical Medicine, University of Bergen, Bergen, Norway;
5. Department of Research, Norwegian Air Ambulance Foundation, Drøbak, Norway;
6. Department of Research and Development, District General Hospital of Førde, Førde, Norway;
7. Department of Heart Disease, Haukeland University Hospital, Bergen, Norway;
8. Norwegian National Advisory Unit on Trauma, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway;
9. Section of Cardiothoracic Surgery, Department of Heart Disease, Haukeland University Hospital, Bergen, Norway;
10. Department of Neurology, Haukeland University Hospital, Bergen, Norway;
11. Center for Day Surgery, Hospitalet Betanien, Bergen, Norway;
12. The Emergency and Primary Health Care Services, Kvam, Norway;
13. Institute of Community Medicine, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway