1. Outpatient Physical Therapy Practice, FysioStiens, Stiens, the Netherlands
2. Department of Physical Therapy, Deventer Hospital, Deventer, The Netherlands
3. Department of Rheumatology, Sint Maartenskliniek, Nijmegen, The Netherlands
4. Radboud Institute for Health Sciences, Radboud university medical center, IQ Healthcare, Nijmegen, The Netherlands
5. Caphri, Maastricht University Medical Centre, Maastricht, The Netherlands
6. Topsector Life Sciences and Health (Health~Holland), The Hague, The Netherlands