1. Departments of Orthopaedic and Neurologic Surgery, NYU Langone Orthopedic Hospital, New York, New York;
2. New York Spine Institute, New York, New York;
3. University of Oxford, United Kingdom;
4. Department of Neurosurgery, Technical University of Munich, Klinikum rechts der Isar, Munich, Germany;
5. Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts;
6. Department of Orthopedics, SUNY Downstate, Brooklyn, New York;
7. Department of Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas;
8. Department of Orthopedics, Hospital for Special Surgery, New York, New York; and
9. Department of Orthopedics, Lenox Hill Hospital, Northwell Health, New York, New York