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Authors
Wang, Jiayi
Luo, Nansheng
Sun, Yu
Bai, Ru
Li, Xueying
Liu, Libing
Wu, Hui
Liu, Li
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Funding
Funding for this research was provided by:
Liaoning Social Science Planning Fund Project (L19BGL042)
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Article History
Received: 28 February 2023
Accepted: 11 June 2023
First Online: 20 June 2023
Declarations
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: CHARLS was approved by the Biomedical Ethics Committee of Peking University (IRB00001052-11015). Before the investigation, the agreements have been signed with all participants.
: Not applicable.
: The authors declare no competing interests.
