Affiliation: | 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. Department of Anaesthesiology and Intensive Care, University of Helsinki, Helsinki University Central Hospital, Helsinki, Finland |