About the Authors

Ruifa Hu

Contributed equally to this work with: Ruifa Hu, Xusheng Huang, Jikun Huang

ruifa@bit.edu.cn (RH); lewish301@sina.com (XH); jkhuang.ccap@igsnrr.ac.cn (JH)

Affiliation School of Management and Economics, Beijing Institute of Technology, Beijing, China

Xusheng Huang

Contributed equally to this work with: Ruifa Hu, Xusheng Huang, Jikun Huang

ruifa@bit.edu.cn (RH); lewish301@sina.com (XH); jkhuang.ccap@igsnrr.ac.cn (JH)

Affiliation Department of Neurology, Chinese PLA General Hospital, Beijing, China

Jikun Huang

Contributed equally to this work with: Ruifa Hu, Xusheng Huang, Jikun Huang

ruifa@bit.edu.cn (RH); lewish301@sina.com (XH); jkhuang.ccap@igsnrr.ac.cn (JH)

Affiliation Center for Chinese Agricultural Policy, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China

Yifan Li

Affiliation Department of Neurology, Chinese PLA General Hospital, Beijing, China

Chao Zhang

Affiliation School of Management and Economics, Beijing Institute of Technology, Beijing, China

Yanhong Yin

Affiliation Department of Neurology, Chinese PLA General Hospital, Beijing, China

Zhaohui Chen

Affiliation Department of Neurology, Chinese PLA General Hospital, Beijing, China

Yanhong Jin

Affiliation Department of Agricultural, Food and Resource Economics, Rutgers University, New Brunswick, New Jersey, United States of America

Jinyang Cai

Affiliation School of Management and Economics, Beijing Institute of Technology, Beijing, China

Fang Cui

Affiliation Department of Neurology, Chinese PLA General Hospital, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RH JH XH. Performed the experiments: CZ YL YY ZC JC FC RH XH. Analyzed the data: RH CZ YL YJ. Contributed reagents/materials/analysis tools: YL CZ. Wrote the paper: RH JH YL.