1. Department of Orthopaedic Surgery Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi Province China
2. Department of Orthopaedic Surgery Xi'an Children's Hospital Xi’an Shaanxi Province China
3. Department of Spine Surgery Hong Hui HospitalXi’an Jiaotong University Xi’an Shaanxi Province China
4. Xi'an International Medical Center Hospital Xi’an Shaanxi Province China