About the Authors

YuanZheng Hou

Contributed equally to this work with: YuanZheng Hou, XiaoLei Chen

XiaoLei Chen

Contributed equally to this work with: YuanZheng Hou, XiaoLei Chen

BaiNan Xu

kkmmhouyz@sina.com

Affiliation Department of Neurosurgery, Chinese People's Liberation Army(PLA) General Hospital, Beijng, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YZH XLC BNX. Performed the experiments: YZH XLC. Analyzed the data: YZH XLC. Contributed reagents/materials/analysis tools: XLC BNX. Wrote the paper: YZH.