About the Authors

Hui Wang

Contributed equally to this work with: Hui Wang, Xiaolan Zhou

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Xiaolan Zhou

Contributed equally to this work with: Hui Wang, Xiaolan Zhou

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Ciyong Lu

luciyong@mail.sysu.edu.cn

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Jie Wu

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Xueqing Deng

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Lingyao Hong

Affiliation Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CL. Performed the experiments: CL XZ HW JW XD LH. Analyzed the data: HW XZ. Contributed reagents/materials/analysis tools: HW XZ. Wrote the paper: HW.