1. Department of Spine Surgery, Third Xiangya Hospital Central South University Changsha Hunan China
2. Department of Orthopaedics, Third Xiangya Hospital Central South University Changsha Hunan China
3. Department of Hematology Liuzhou People's Hospital affiliated to Guangxi Medical University Liuzhou Guangxi China
4. Department of Hematology The Qinghai Provincial People's Hospital Xining Qinghai China
5. Department of Orthopaedics Liuzhou Municipal Liutie Central Hospital Liuzhou Guangxi China