1. Department of Physiotherapy, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
2. Pain Centre, Department of Anesthesiology, University Medical Centre Groningen, University of Groningen School of Health Care Studies, Hanze University Groningen, University of Applied Sciences, The Netherlands
3. Center for Rehabilitation, University Medical Center Groningen University of Groningen, The Netherlands
4. Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, The Netherlands
5. Department of Physiotherapy, Free University Medical Center, Amsterdam, The Netherlands
6. Department of Physiotherapy, Medical Center Leeuwarden, Leeuwarden, The Netherlands
7. Department of Biostatistics, The Netherlands Cancer Institute - Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
8. Northern Centre for Health Care Research, University of Groningen, The Netherlands