1. Department of Prosthetics and Orthotics Faculty of Medicine and Health Örebro University Örebro Sweden
2. University Health Care Research Center Faculty of Medicine and Health Örebro University Örebro Sweden
3. School of Health and Welfare Jönköping University Jönköping Sweden
4. International Organization for Standardization Sibbhult Sweden
5. Össur Clinics Scandinavia Stockholm Sweden