1. Department of Physical Medicine and Rehabilitation, Oslo University Hospital Ulleval, Oslo, Norway.
2. Faculty of Medicine, University of Oslo, Oslo, Norway.
3. Department of Neurosurgery, Oslo University Hospital Ulleval, Oslo, Norway.
4. Department of Acute Medicine, Intensive Care Unit, Oslo University Hospital Ulleval, Oslo, Norway.
5. Sunnaas Rehabilitation Hospital, Nesoddtangen, Norway.
6. Department of Psychology, University of Oslo, Oslo, Norway.
7. Oslo University College, Oslo, Norway.
8. Rehabilitation Clinic, Sørlandet Hospital, Kristiansand, Norway.
9. Faculty of Health and Sport Sciences, Agder University, Kristiansand, Norway.