About the Authors
- Jie-Yun Song
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Affiliation Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- Qi-Ying Song
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Affiliation Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- Shuo Wang
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Affiliation Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- Jun Ma
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Affiliation Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
- Hai-Jun Wang
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* E-mail: whjun1@bjmu.edu.cn
Affiliation Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceptualization: HJW JM. Data curation: JYS HJW. Formal analysis: JYS HJW. Funding acquisition: HJW. Investigation: JYS QYS SW JM HJW. Methodology: JYS HJW. Project administration: HJW JM. Supervision: HJW. Validation: JYS HJW. Visualization: JYS. Writing – original draft: JYS. Writing – review & editing: JYS QYS SW JM HJW.