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Authors
Xian, Jinli
Zeng, Mao
Cai, Zhengjie
Xie, Changxiao
Xie, Yuqian
Sharma, Manoj
Zhao, Yong https://orcid.org/0000-0003-3182-0522
Shi, Zumin
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Article History
Received: 5 October 2020
Accepted: 2 June 2021
First Online: 12 June 2021
Declarations
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: The survey was approved by the institutional review committees of the University of North Carolina at Chapel Hill and the National Institute of Nutrition and Food Safety at the Chinese Center for Disease Control and Prevention. All subjects gave their informed consent for inclusion before they participated in the study, and written informed consent was obtained from a parent or guardian for participants under 16 years old.
: Not applicable.
: The authors declare that they have no competing interests.
