1. Disability and Rehabilitation Research Unit, Griffith University, Logan Campus, Brisbane, Australia
2. Department of Health Sciences, Mid Sweden University, Östersund, Sweden
3. Faculty of Health Science, Nord-Trøndelag University College, Levanger, Norway
4. Department of Social Work and Health Science, Norwegian University of Technology and Science, Trondheim, Norway
5. Trøndelag Research and Development Institute, Steinkjer, Norway