Author Affiliations: Department of Pediatric Neurosurgery, General Hospital of Tianjin Medical University, Tianjin 300052, China (Cai CQ, Yang WD, Shen CH); Department of Neurosurgery, Tianjin Children's Hospital, Tianjin 300074, China (Cai CQ, Zhang QJ); Department of Radiology, Tianjin Children's Hospital, Tianjin 300074, China (Wang CX)

Corresponding Author: Prof. Chang-Hong Shen, MD, Department of Pediatric Neurosurgery, General Hospital of Tianjin Medical University, No. 54 Anshan Road, Heping District, Tianjin 300052, China (Tel: +86-22-23519459-86403; Email: tjpns@126.com)