1. Research Unit of Nursing Science and Health Management University of Oulu Oulu Finland
2. Emergency Medical Services Kainuu Central Hospital Kajaani Finland
3. Centre for Pre‐Hospital Emergency Care Oulu University Hospital Oulu Finland
4. Anaesthesia Research group MRC Oulu University Hospital and University of Oulu Oulu Finland
5. Department of Anaesthesiology and Intensive Care University of Helsinki Helsinki University Central Hospital Helsinki Finland
6. Research Group of Surgery, Anaesthesia and Intensive Care Medicine University of Oulu Medical Research Center Division of Intensive Care Oulu University Hospital Oulu Finland
7. Faculty of Medicine Research Unit of Nursing Science and Health Management University of Oulu Medical Research Centre University Hospital of Oulu Oulu Finland