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Authors
Chen, Xiao-xin
Chen, Zuo-xi
Zhou, Wu-jie
Wang, Yong
Su, Jia
Zhou, Qiang https://orcid.org/0000-0001-9950-8311
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Article History
Received: 23 November 2022
Accepted: 16 December 2022
First Online: 11 January 2023
Declarations
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: The authors declare that they have no conflict of interests.
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: The ethics of the study was approved by the Institutional Review Board of Peking University. The Institutional Review Board approval number for the main household survey was IRB00001052-11015 and for the biomarker collection was IRB00001052-11014.
: Written informed consent was obtained from all participants in the study.
