About the Authors

Xiaolin Wei

Affiliation School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong, China

Guanyang Zou

Affiliation Nuffield Centre for International Health and Development, University of Leeds, Leeds, United Kingdom

Jia Yin

Affiliation Nuffield Centre for International Health and Development, University of Leeds, Leeds, United Kingdom

John Walley

Affiliation Nuffield Centre for International Health and Development, University of Leeds, Leeds, United Kingdom

Biao Zhou

Affiliation School of Public Health, Zhejiang University, Hangzhou, China

Yunxian Yu

Affiliation School of Public Health, Zhejiang University, Hangzhou, China

Linwei Tian

Affiliation School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong, China

Kun Chen

ck@zju.edu.cn

Affiliation School of Public Health, Zhejiang University, Hangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Provide extensive comments to the manuscript: KC JW YY. Conceived and designed the experiments: XW GZ YY BZ KC. Performed the experiments: BZ YY KC XW. Analyzed the data: JY LT. Wrote the paper: XW GZ JY GZ YY.