1. Department of Intensive Care Medicine; Tampere University Hospital and University of Tampere; Tampere Finland
2. Emergency Medical Services; Department of Emergency Medicine; University of Turku and Turku University Hospital; Turku Finland
3. Faculty of Social Sciences; University of Tampere; Tampere Finland
4. Department of Anaesthesiology, Intensive Care and Pain Medicine; University of Helsinki and Helsinki University Hospital; Helsinki Finland
5. Department of Surgical Sciences, Anaesthesiology and Intensive Care; Uppsala University; Uppsala Sweden