1. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group, Vrije Universiteit Brussel, Building F-KIMA, Laarbeeklaan 103, BE-1090 Brussels, Belgium; and Department of Physical Medicine and Physiotherapy, Chronic Pain Rehabilitation, University Hospital Brussels, Brussels, Belgium
2. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group, Vrije Universiteit Brussel; Department of Physical Medicine and Physiotherapy, Chronic Pain Rehabilitation, University Hospital Brussels; and Transcare Pain, Transdisciplinary Treatment Center, Groningen, the Netherlands
3. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group,Vrije Universiteit Brussel; Department of Physical Medicine and Physiotherapy, Chronic Pain Rehabilitation, University Hospital Brussels; and Research Foundation–Flanders (FWO), Brussels, Belgium
4. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group, Vrije Universiteit Brussel; Department of Physical Medicine and Physiotherapy, Chronic Pain Rehabilitation, University Hospital Brussels; Research Foundation–Flanders (FWO); and Department of Public Health (GEWE), Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel
5. Department of Physical Therapy, School of Medicine, University of Colorado, Aurora, Colorado, and Wardenburg Health Center, University of Colorado, Boulder, Colorado
6. Research School CAPHRI, Maastricht University, Maastricht, the Netherlands, and CIR Revalidatie Eindhoven/Zwolle, Eindhoven/Zwolle, the Netherlands
7. Research School CAPHRI, Maastricht University, and CIR Revalidatie Eindhoven/Zwolle
8. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group, Vrije Universiteit Brussel; and Transcare Pain, Transdisciplinary Treatment Center
9. Department of Physiotherapy, Faculty of Physical Education and Physiotherapy, Pain in Motion International Research Group, Vrije Universiteit Brussel
10. Department of Physical Therapy, International Spine and Pain Institute, Louisville, Kentucky
11. Department of Physical Therapy, Franklin Pierce University, Manchester, New Hampshire
12. Physical Therapy Program, School of Medicine, Tufts University, Boston, Massachusetts