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Authors
Zhao, Songfeng
Cao, Yangbin
Liu, Hongyi
Liu, Aihua
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81771233，82171290)
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Article History
Received: 11 October 2023
Accepted: 11 December 2024
First Online: 24 January 2025
Declarations
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: The Ethics Review Board of the National Center for Health Statistics (NCHS) granted approval for the survey protocol. Written informed consent form was obtained from all participants.
: The authors declare no competing interests.
