1. Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
2. Department of Neurosurgery, Jiangxi Provincial Children's Hospital, Nanchang, Jiangxi 330006, P.R. China
3. Queen Mary School, Medical College, Nanchang University School of Medicine, Nanchang, Jiangxi 330031, P.R. China