1. Department of Research and Development, Military Rehabilitation Centre Aardenburg, Doorn PW, The Netherlands
2. De Hoogstraat Rehabilitation, Utrecht TM, The Netherlands
3. Ecare4you, Amersfoort BJ, The Netherlands
4. Expert Centre Force Health Protection, Ministry of Defence, Doorn PW, The Netherlands
5. Defence Healthcare Organisation, Ministry of Defence, Utrecht AB, The Netherlands
6. Department of Surgery, Alrijne Hospital, Leiderdorp CK, The Netherlands
7. Department of Surgery, Leiden University Medical Centre, Leiden ZA, The Netherlands
8. Department of Surgery, Central Military Hospital, Ministry of Defence, Utrecht EZ, The Netherlands
9. Institute of Human Movement Studies, HU University of Applied Sciences Utrecht, Utrecht CS, The Netherlands