About the Authors

Tong Su

Contributed equally to this work with: Tong Su, Xue Han, Fei Chen, Yan Du

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Xue Han

Contributed equally to this work with: Tong Su, Xue Han, Fei Chen, Yan Du

Affiliation Department of Chronic Diseases, Center for Disease Control and Prevention of Yangpu District, Shanghai, China

Fei Chen

Contributed equally to this work with: Tong Su, Xue Han, Fei Chen, Yan Du

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Yan Du

Contributed equally to this work with: Tong Su, Xue Han, Fei Chen, Yan Du

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Hongwei Zhang

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Jianhua Yin

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Xiaojie Tan

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Wenjun Chang

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Yibo Ding

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Yifang Han

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Guangwen Cao

gcao@smmu.edu.cn

Affiliation Department of Epidemiology, Second Military Medical University, Shanghai, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GC TS HZ XH. Performed the experiments: TS FC XH Y. Ding JY XT WC YH. Analyzed the data: TS Y. Du HZ. Contributed reagents/materials/analysis tools: TS XH FC Y. Du JY XT WC YH. Wrote the paper: TS Y. Du GC. Obtained permission for the field survey: GC. Obtained funding: GC.