1. Department of Physical Medicine and Rehabilitation, Oslo University Hospital, 0424 Oslo, Norway
2. Department of Research, Sunnaas Rehabilitation Hospital, 1453 Bjørnemyr, Norway
3. Department of Psychology, Faculty of Social Sciences, University of Oslo, 0316 Oslo, Norway
4. Department of Neurohabilitation, Oslo University Hospital, 0424 Oslo, Norway
5. Center for Habilitation and Rehabilitation Models and Services (CHARM), Institute of Health and Society, Faculty of Medicine, University of Oslo, 0316 Oslo, Norway
6. Centre for Biostatistics and Epidemiology, Oslo University Hospital, 0424 Oslo, Norway
7. Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0316 Oslo, Norway