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Authors
Wu, Zhaoping
Ouyang, Ting
Liu, Hechun
Cao, Lingling
Chen, Weili
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Article History
Received: 18 November 2022
Accepted: 7 April 2023
First Online: 17 April 2023
Declarations
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: All of the protocols of the survey were approved by the research ethics review board at the NCHS.
: Written informed consent was obtained from all participants prior to data collection.
: All of the authors have read and approved the paper for publication.
: The authors declare no competing interests.
