Corresponding Author

Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, China

Department of Spinal Surgery, Peking University Shenzhen Hospital, Shenzhen, China

both authors are corresponding authors

Correspondence

Shaoxiong Min, M.D. Department of Orthopedics, Zhujiang Hospital, Southern Medical University, 253 Industrial avenue, Guangzhou, China; Email: msxbear24@163.com, Tel:+8613928885822, Fax: +86-020-62782579.

Benchao Shi, M.D. Department of Orthopedics, Zhujiang Hospital, Southern Medical University, 253 Industrial avenue, Guangzhou, China; Email: benchaoys@163.com, Tel:+8615521287821, Fax: +86-020-62782579.