About the Authors

Lian Tong

ltong@fudan.edu.cn

Affiliation Department of Maternal, Child and Adolescent Health, School of Public Health, Key Laboratory of Public Health Safety, Fudan University, Shanghai, China

Xu Xiong

Affiliation School of Public Health and Tropical Medicine, Tulane University, New Orleans, United States of America

Hui Tan

Affiliation Department of Maternal, Child and Adolescent Health, School of Public Health, Key Laboratory of Public Health Safety, Fudan University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: LT. Data curation: LT HT. Formal analysis: LT. Funding acquisition: LT. Investigation: LT. Methodology: LT. Project administration: LT. Resources: LT. Software: LT. Supervision: LT. Validation: LT. Visualization: LT. Writing – original draft: LT. Writing – review & editing: LT XX.