1. Spine and Nerve Center of the Virginias, Charleston, West Virginia
2. Ainsworth Institute of Pain Management, New York, New York
3. Pain Specialists of America, Austin, Texas
4. University of Kansas Medical Center, Kansas City, Kansas
5. UK HealthCare Pain Services, Department of Anesthesiology, University of Kentucky College of Medicine, Lexington, Kentucky
6. Division of Pain Medicine, Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota
7. Evolve Restorative Center, Santa Rosa, California
8. Department of Neurosurgery, Neurosurgical Associates of Lancaster, Lancaster, Pennsylvania
9. Pain Diagnostics and Interventional Care, Sewickley, Pennsylvania
10. Florida Pain Institute, Melbourne, Florida
11. Department of Neurosurgery, University of Illinois at Chicago, Chicago, Illinois, USA
12. Leeds Teaching Hospital, NHS Trust, Leeds, UK
13. Hunter Pain Specialists, Broadmeadow, NSW, Australia
14. Department of Neurology/Pain, University of South Florida, Spine & Pain Institute of Florida, Lakeland, Florida
15. Department of Neurosurgery, NYU Langone Medical Center, New York, New York
16. Carolina Pain Institute at Brookstown, Wake Forest Baptist Health, Winston-Salem, North Carolina, USA
17. Metro Spinal Clinic, Melbourne, Victoria, Australia
18. IPM Medical Group, Walnut Creek, California
19. Anodyne Research, Pennsylvania
20. Department of Anesthesiology, University of Kentucky, Lexington, Kentucky
21. The Spine Institute of New York, New York, New York, USA
22. St. Antonius Hospital, Nieuwegein, the Netherlands
23. Arizona Pain/Pain Doctor, Midwestern Medical School, Glendale, Arizona
24. Mt. Sinai Hospital, New York, New York
25. Interventional Pain Management and Pain Psychiatry Faculty, Henry Ford Health System Detroit, Michigan
26. University of Florida College of Medicine, Jacksonville, Florida
27. Center for Interventional Pain and Spine, Bryn Mawr, Pennsylvania, USA
28. Pain Management and Neuromodulation Centre at Guy’s and St. Thomas’ NHS Trust, London, UK
29. Pain Specialists Australia, Monash University, Richmond, Victoria, Australia
30. Neurosurgical Services and of Clinical Research, Anesthesia Pain Care Consultants, Tamarac, Florida
31. Evidence-Based Pain Management Research and Education, Cleveland Clinic, Cleveland, Ohio, USA