1. Department of Spine Surgery, Mallika Spine Centre, Guntur, Andhra Pradesh, India
2. Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
3. Research Department, AO Spine International, Davos, Switzerland
4. Department of Orthopaedics and Traumatology, Acibadem University School of Medicine, Istanbul, Turkey
5. Department of Orthopaedic Surgery, University of Minnesota, MN, USA
6. Department of Orthopaedic Surgery, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Gyeonggi-do, Korea
7. Department of Orthopaedics, National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
8. Department of Orthopedic Surgery, Columbia University Medical Center, New York, NY, USA
9. Department of Orthopaedic Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
10. Department of Research, Sint Maartenskliniek, Nijmegen, Netherlands