1. Department of Rehabilitation Medicine
2. Comparative Effectiveness, Cost, and Outcomes Research Center
3. Department of Health Services
4. Department of Anesthesiology and Pain Medicine
5. Department of Psychology
6. Department of Biostatistics, University of Washington, Seattle, Washington
7. VA Puget Sound Health Care System, Seattle, Washington
8. Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, Washington
9. Department of Family Medicine
10. Department of Medicine, Oregon Health & Science University, Portland, Oregon
11. Seattle Children’s Research Institute, Seattle, Washington
12. Neuroscience Institute, Henry Ford Hospital, Detroit, Michigan
13. Division of Research, Kaiser Permanente Northern California, Oakland, California
14. Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, and Spine Unit, Harvard Vanguard Medical Associates, Boston, Massachusetts
15. Department of Radiology
16. Department of Neurological Surgery, University of Washington, Seattle, Washington, USA