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Authors
Zhang, Xin
Yue, Yankun
Liu, Shaobo
Cong, Xiangfeng
Wang, Wenjuan
Li, Jianhong
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Article History
Received: 27 June 2022
Accepted: 20 December 2022
First Online: 3 January 2023
Declarations
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: This study had been passed the review of the Ethics Review Committee of the National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention (approval number: 201524B). All methods had been performed in accordance with the Declaration of Helsinki. All the participants signed the informed consent form, and for the illiterate participants, the informed consent of their parents and/or legal guardians was obtained.
: No applicable.
: All authors declare that there is no conflict of interest.
