About the Authors

Zongwen Li

Contributed equally to this work with: Zongwen Li, Chunliu Li

Affiliation Department of Epidemiology and Health Statistics, School of Public Health and Family Medicine, Capital Medical University, Beijing, China

Chunliu Li

Contributed equally to this work with: Zongwen Li, Chunliu Li

Affiliation Department of Epidemiology and Health Statistics, School of Public Health and Family Medicine, Capital Medical University, Beijing, China

Lianlian Du

Affiliation Department of Epidemiology and Health Statistics, School of Public Health and Family Medicine, Capital Medical University, Beijing, China

Yan Zhou

Affiliation Department of Biochemistry, School of Basic Medical Sciences, Capital Medical University, Beijing, China

Wei Wu

weiwu207@ccmu.edu.cn

Affiliations Department of Epidemiology and Health Statistics, School of Public Health and Family Medicine, Capital Medical University, Beijing, China, Department of Biochemistry, School of Basic Medical Sciences, Capital Medical University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Contributed reagents/materials/analysis tools: YZ. Conceived and designed the experiments: WW. Performed the experiments: ZL CL. Analyzed the data: LD. Wrote the paper: ZL CL WW.