About the Authors

Zhanzhan Li

Affiliation Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China

Jing Xue

Affiliation Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China

Shipeng Yan

Affiliation Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China

Peng Chen

Affiliation Xiangya Medical School, Central South University, Changsha, Hunan Province, China

Lizhang Chen

liche4005@126.com

Affiliation Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZL LC. Performed the experiments: ZL PC JX. Analyzed the data: ZL LC. Contributed reagents/materials/analysis tools: ZL JX. Wrote the manuscript: ZL SY.