1. Division of Habilitation, Telemark Hospital Trust, 3710 Skien, Norway
2. Research Center for Habilitation and Rehabilitation Models & Services (CHARM), Department of Public Health, Institute of Health and Society, Faculty of Medicine, University of Oslo, 0373 Oslo, Norway
3. University Health Care Research Centre, Faculty of Medicine and Health, Örebro University, 701 82 Örebro, Sweden
4. Faculty of Health and Social Sciences, Inland Norway University of Applied Sciences, 2406 Elverum, Norway
5. NorCP, Department of Clinical Neurosciences for Children, Oslo University Hospital, 0450 Oslo, Norway
6. Department of Research, Telemark Hospital Trust, 3710 Skien, Norway