1. Department of Orthopedic Surgery, University of California, Davis, Sacramento, CA, USA
2. Department of Neurosurgery, Medical Center, University of Virginia, Charlottesville, VA, USA
3. Department of Orthopedic Surgery, Denver International Spine Center, Denver, CO, USA
4. Department of Orthopedic Surgery, Northwell Health, Lenox Hill Hospital, New York, NY, USA
5. Department of Orthopedic Surgery, Hospital for Special Surgery, New York, NY, USA
6. Department of Orthopedic Surgery, NYU Hospital for Joint Diseases, New York, NY, USA
7. Department of Orthopedic Surgery, Norton Leatherman Spine Center, Louisville, KY, USA
8. Department of Orthopedic Surgery, Johns Hopkins University, Baltimore, MD, USA
9. Department of Orthopedics, San Diego Center for Spinal Disorders, La Jolla, CA, USA
10. Department of Orthopedics, Brown University, Providence, RI, USA
11. Department of Orthopedic Surgery, Baylor Scoliosis Center, Dallas, TX, USA
12. Department of Neurosurgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
13. Department of Orthopedic Surgery, Rady Children’s Hospital, San Diego, CA,
14. Department of Orthopedic Surgery, Washington University in St. Louis, St. Louis, MO, USA
15. Department of Orthopedic Surgery, Swedish Neuroscience Institute, Seattle, WA, USA
16. Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
17. Department of Neurosurgery, University of California, San Francisco, San Francisco, CA, USA
18. Department of Orthopedic Surgery, Columbia University, New York, NY, USA
19. Department of Neurosurgery, Duke University Hospital, Durham, NC, USA
20. Department of Orthopedic Surgery, University of Texas, Houston, TX, USA