Affiliation: | 1. Department of Thoracic and Occupational Medicine, Trondheim University Hospital, , Trondheim, Norway;2. Institute of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU), , Trondheim, Norway;3. Department of Research, Haugesund Hospital, Helse Fonna, , Haugesund, Norway;4. Department of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, , Oslo, Norway;5. Department of Nursing Science, University of Oslo, , Oslo, Norway |