About the Authors

Jia Cao

Contributed equally to this work with: Jia Cao, Minming Li

Affiliation Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China

Minming Li

Contributed equally to this work with: Jia Cao, Minming Li

Affiliation Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China

Yu Wang

Affiliation Children's Hospital of Shanghai, Shanghai, China

Guangjun Yu

yugj1688@shchildren.com.cn (GY); yanch@shkeylab-ceh.org (CY)

Affiliation Children's Hospital of Shanghai, Shanghai, China

Chonghuai Yan

yugj1688@shchildren.com.cn (GY); yanch@shkeylab-ceh.org (CY)

Affiliation Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CY GY. Performed the experiments: JC ML. Analyzed the data: JC. Contributed reagents/materials/analysis tools: JC. Wrote the paper: JC. Collected data: YW. Coordinated the survey: YW.