1. Department of Orthopedic Surgery University Medical Center Utrecht Utrecht The Netherlands
2. Division of Orthopedic Surgery The Children's Hospital of Philadelphia Philadelphia PA USA
3. Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
4. Department of Orthopaedics and Traumatology, S. H. Ho Scoliosis Research Laboratory The Chinese University of Hong Kong Shatin Hong Kong
5. Joint Scoliosis Research Center of The Chinese University of Hong Kong‐Nanjing University The Chinese University of Hong Kong Shatin Hong Kong
6. Académie Nationale de Médecine Paris France