1. Department of Health, Medicine and Caring Sciences (HMV), Linköping University, SE-581 83 Linköping, Sweden
2. School of Health and Welfare, Dalarna University, SE-791 88 Falun, Sweden
3. Department of Community Medicine and Rehabilitation, Umeå University, SE-901 87 Umeå, Sweden
4. The Center for Health and Medical Psychology, School of Law, Psychology and Social Work, Örebro University, SE-701 82 Örebro, Sweden
5. Division of Rehabilitation Medicine, Department of Clinical Sciences, Karolinska Institutet, SE-171 77 Stockholm, Sweden
6. Department of Rehabilitation Medicine, Danderyd University Hospital, SE-182 88 Stockholm, Sweden
7. Department of Health Sciences, Research Group Rehabilitation Medicine, Lund University, SE-221 00 Lund, Sweden
8. Department of Neurosurgery and Pain Rehabilitation, Skåne University Hospital, SE-221 85 Lund, Sweden