About the Authors

Xiang Li

Affiliation Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China

Junling Gao

Affiliation Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China

Zhixing Zhang

Affiliation Health Inspection Institute of Changning District, Shanghai, China

Minqi Wei

Affiliation Center of Diseases Control in Minhang District, Shanghai, China

Pinpin Zheng

zpinpin@shmu.edu.cn

Affiliation Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China

Eric J. Nehl

Affiliation Department of Behavioral Sciences & Health Education, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America

Frank Y. Wong

Affiliation Department of Behavioral Sciences & Health Education, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America

Carla J. Berg

Affiliation Department of Behavioral Sciences & Health Education, Emory University Rollins School of Public Health, Atlanta, Georgia, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PZ. Performed the experiments: ZZ MW XL. Analyzed the data: JG EN. Wrote the manuscript: XL PZ CB FW.