1 Department of Acute Medicine, Oslo University Hospital, Oslo, Norway.
2 Institute of Nursing, Faculty of Health Studies, VID Specialized University, Oslo, Norway.
3 Department of Cardiology, Oslo University Hospital, Oslo, Norway.
4 Department of Health and Nursing, Faculty of Social and Health Sciences, Inland Norway University of Applied Sciences, Elverum, Norway.
5 Department of Health, Faculty of Health Studies, VID Specialized University, Stavanger, Norway.
6 Norwegian Center for Violence and Traumatic Stress Studies, Oslo, Norway.
7 Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
8 Psychosomatic and CL Psychiatry, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
9 Department of Public Health Science, Faculty of Medicine, Institute of Health and Society, Faculty of Health Sciences University of Oslo, Oslo, Norway.
10 Department of Health and Care Sciences, UiT The Arctic University of Norway, Tromsø, Norway.