About the Authors

Nan Li

Affiliations Tianjin Women’s and Children’s Health Center, Tianjin, China, Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America

Enqing Liu

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Jia Guo

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Lei Pan

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Baojuan Li

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Ping Wang

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Jin Liu

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Yue Wang

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Gongshu Liu

Affiliation Tianjin Women’s and Children’s Health Center, Tianjin, China

Gang Hu

gang.hu@pbrc.edu

Affiliation Chronic Disease Epidemiology Laboratory, Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GH GL. Performed the experiments: GL EL JG LP BL PW JL YW. Analyzed the data: NL GH. Contributed reagents/materials/analysis tools: GL. Wrote the manuscript: NL GH.