About the Authors

Songhua Xiao

Contributed equally to this work with: Songhua Xiao, Zhen Yang

Affiliation Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guanzhou, Guangdong, People's Republic of China

Zhen Yang

Contributed equally to this work with: Songhua Xiao, Zhen Yang

Affiliation Department of Hypertension and Vascular Disease, The First Affiliated Hospital, Sun Yat-Sen University, Guanzhou, Guangdong, People's Republic of China

Ruiyan Lv

Affiliation Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guanzhou, Guangdong, People's Republic of China

Jia Zhao

Affiliation Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guanzhou, Guangdong, People's Republic of China

Ming Wu

Affiliation Department of Neurosurgery, Xiangya Hospital, Central South university, Changsha, Hunan, People's Republic of China

Yiwei Liao

Affiliation Department of Neurosurgery, Xiangya Hospital, Central South university, Changsha, Hunan, People's Republic of China

Qing Liu

chingliucn@yahoo.com

Affiliation Department of Neurosurgery, Xiangya Hospital, Central South university, Changsha, Hunan, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SX QL. Performed the experiments: RL JZ ZY SX. Analyzed the data: ZY MW YL. Contributed reagents/materials/analysis tools: RL JZ SX QL. Wrote the paper: SX ZY QL. Designed the software used in analysis: YL.