1. Centre for Pre-Hospital Emergency Medicine; Oulu University Hospital; Oulu Finland
2. Medical Research Center; Research Group of Surgery; Anesthesiology and Intensive Care; Oulu University; Oulu Finland
3. Oulu University Hospital; Department of Anesthesiology; Division of Intensive Care Medicine; Oulu Finland
4. Emergency Medical Services; Turku University Hospital and University of Turku; Turku Finland
5. Faculty of Medicine; Oulu University; Oulu Finland
6. Division of Operative Care; Oulu University Hospital; Oulu Finland
7. Department of Anaesthesiology and Intensive Care Medicine; University of Helsinki and Helsinki University Central Hospital; Helsinki Finland