1. Basalt, Leiden, The Netherlands
2. Zorginstituut Nederland, Diemen, The Netherlands
3. Basalt, The Hague, The Netherlands
4. Department of Rehabilitation, Haaglanden Medical Center, The Hague, The Netherlands
5. Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
6. Mathematical Institute, Leiden University, Leiden, The Netherlands
7. Department of Orthopaedics, Rehabilitation and Physical Therapy, Leiden University Medical Center, Leiden, The Netherlands
8. Department of Rehabilitation, Reinier de Graaf Gasthuis, Delft, The Netherlands
9. Merem Rehabilitation Center, Hilversum, The Netherlands