About the Authors

Ying Xu

Contributed equally to this work with: Ying Xu, Fang-fang Zeng

Affiliations Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China, Department of Epidemiology and Biostatistics, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, People's Republic of China

Fang-fang Zeng

Contributed equally to this work with: Ying Xu, Fang-fang Zeng

Affiliation Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China

Li-ping He

Affiliations Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China, Guangzhou Panyu Central Hospital, Guangzhou, People's Republic of China

Wen-hua Ling

Affiliation Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China

Wei-qing Chen

Affiliation Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China

Yu-ming Chen

chenyum@mail.sysu.edu.cn

Affiliation Guangdong Provincial Key Laboratory of Food, School of Public Health, Sun Yat-sen University, Guangzhou, People's Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YMC WHL WQC. Performed the experiments: LPH. Analyzed the data: YX FFZ. Wrote the paper: YX FFZ.