1. Orthopaedics Institute of Tianjin, Tianjin Hospital Tianjin University Tianjin China
2. Department of Orthopaedics Chinese People's Liberation Army Joint Logistics Support Force Tianjin Rehabilitation Center (Former No. 464 Hospital of People's Liberation Army) Tianjin China
3. Department of Orthopaedics Tianjin Medical University General Hospital Tianjin China
4. Department of Orthopaedics Tianjin Baodi Hospital Tianjin China
5. Department of Orthopaedics Tianjin Medical University Hospital for Metabolic Diseases Tianjin China