1. Department of Rehabilitation Medicine Erasmus MC University Medical Center Rotterdamthe Netherlands
2. Rijndam Rehabilitation Rotterdam the Netherlands.
3. ICF Research Branch NottwilSwitzerland
4. Swiss Paraplegic Research Nottwil Switzerland.
5. Division of Physical Therapy School of Medicine University of North Carolina at Chapel Hill Chapel Hill NC USA.
6. Centre for Clinical Research Uppsala University – Region Västmanland VästeråsSweden
7. Department of Clinical Sciences Orthopaedics Lund University Lund Sweden