1. Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
2. Department of Neurosurgery, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
3. Medical Graduate School of Nanchang University, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China
4. Medical Graduate School of Nanchang University, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, Jiangxi 330006, P.R. China