1. Spinal Cord Injury Center, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
2. Neuroscience Center Zurich, University of Zurich, Zurich, Switzerland
3. Department of Chiropractic Medicine, Integrative Spinal Research Group, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
4. Department of Neurology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland
5. Physical Medicine and Rheumatology, Balgrist University Hospital, Zurich, Switzerland
6. Danish Pain Research Center, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
7. Alan Edward Center for Research on Pain, McGill University, Montreal, QC, Canada