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Authors
Song, Jukun
Li, Shengsui
Wu, Yadong
Tang, Zhenglong
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Article History
Received: 6 April 2024
Accepted: 29 November 2024
First Online: 7 December 2024
Declarations
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: All study methods involving human subjects complied with the Declaration of Helsinki guidelines. The foundational CHARLS study received approval from Peking University’s Ethical Review Committee, ensuring every participant from CHARLS gave their informed consent in writing.
: Not applicable.
: The authors declare no competing interests.
