1. Research Unit PROgrez, Department of Physiotherapy and Occupational Therapy , Naestved, Slagelse & Ringsted Hospitals , Slagelse , Denmark
2. Institute of Regional Health Research , University of Southern Denmark , Odense , Denmark
3. Research Unit for Musculoskeletal Function and Physiotherapy, Department of Sports Science and Clinical Biomechanics, Faculty of Health Sciences , University of Southern Denmark , Odense , Denmark
4. Department of Therapy and Midwifery Studies, Faculty of Health Sciences , University College Copenhagen , Copenhagen , Denmark
5. Multidisciplinary Pain Centre, Department of Anesthesiology , Naestved Hospital , Naestved , Denmark
6. Department of Health Science and Technology, Faculty of Medicine , Aalborg University Hospital , Aalborg , Denmark
7. Pain Research Group/Pain Centre, Department of Anesthesiology and Intensive Care Medicine , Odense University Hospital , Odense , Denmark
8. Department of Clinical Research, Faculty of Health Sciences , University of Southern Denmark , Odense , Denmark
9. Research Unit of General Practice, Department of Public Health, Faculty of Health Sciences , University of Southern Denmark , Odense , Denmark
10. User Perspectives, Department of Public Health, Faculty of Health Sciences , University of Southern Denmark , Odense , Denmark
11. Research Unit of General Practice, Department of Public Health, Faculty of Health Sciences , Aarhus University , Aarhus , Denmark