About the Authors
- Li Cai
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Affiliations Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Xiaoyan Han
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Affiliation Chaoyang District Centre for Disease Control and Prevention, Beijing, China
- Zhi Qi
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Affiliation Chaoyang District Centre for Disease Control and Prevention, Beijing, China
- Zhe Li
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Affiliation Chaoyang District Centre for Disease Control and Prevention, Beijing, China
- Yumei Zhang
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Affiliation Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China
- Peiyu Wang
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Affiliation Department of Social Medicine and Health Education, School of Public Health, Peking University Health Science Center, Beijing, China
- Aiping Liu
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* E-mail: apingliu@163.com
Affiliation Department of Social Medicine and Health Education, School of Public Health, Peking University Health Science Center, Beijing, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: LC AL. Performed the experiments: XH ZQ ZL. Analyzed the data: LC. Contributed reagents/materials/analysis tools: XH ZQ ZL. Wrote the paper: LC AL YZ PW.