1. Oxford Spine Service, Oxford University Hospitals, Oxford, England
2. Combined Neurosurgical and Orthopaedic Spine Program, University of British Columbia, Vancouver, BC, Canada
3. Orthopedic Residency Program, University of Toronto, Toronto, ON, Canada
4. Department of Neurosurgery, University of North Carolina, Chapel Hill, NC, USA
5. Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
6. Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
7. Orthopaedic Oncology, MD Anderson Cancer Center, Houston, TX, USA
8. Norman Prince Neurosciences Institute, Rhode Island Hospital, Providence, RI, USA
9. Oncologic and Degenerative Spine Surger, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
10. Department of Spinal Surgery, National Center for Spinal Disorders, Budapest, Hungary
11. Department of Radiation Oncology, Sunnybrook Health Science Center, Toronto, ON, Canada
12. Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
13. Department of Neurosurgery, New York University Langone Health, New York, NY, USA