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Authors
Xia, Tao
Liu, Xiaoling
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Article History
Received: 6 February 2025
Accepted: 24 November 2025
First Online: 29 November 2025
Declarations
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: This study was performed in line with the principles of the Declaration of Helsinki and all participants signed informed consents before participation. Approval was granted by the Ethical Review Committee at Peking University (CHARLS: IRB00001052-11015).
: Not applicable.
: The authors declare no competing interests.
