About the Authors

Yao Yu

Affiliation Department of Neurology, Peking University People’s Hospital, Beijing, China

Wei Zhao

Affiliation Department of Internal medicine, Mancheng country Hospital, Baoding, China

Chunpeng Zhu

Affiliation Department of Internal medicine, Mancheng country Hospital, Baoding, China

Zhiping Kong

Affiliation Department of Internal medicine, Mancheng country Hospital, Baoding, China

Yan Xu

Affiliation Department of Neurology, Peking University People’s Hospital, Beijing, China

Guangzhi Liu

Affiliation Department of Neurology, Peking University People’s Hospital, Beijing, China

Xuguang Gao

gxg56@tom.com

Affiliation Department of Neurology, Peking University People’s Hospital, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XGG. Performed the experiments: XGG YY WZ CPZ ZPK YX GZL. Wrote the paper: XGG YY.