1 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No. 119 Nansihuan Xilu, Beijing, 100070, China.
2 Department of Orthopaedic Surgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, No. 1111 Xianxia Road, Shanghai, 200336, China.
3 Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No. 119 Nansihuan Xilu, Beijing, 100070, China. wuzhen@bjtth.org.
4 Department of Orthopaedic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, No. 2000 Jiangyue Road, Shanghai, 200127, China. scoliosis@126.com.