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Authors
Zhang, Shike
Cao, Changchun
Han, Yong
Hu, Haofei
Zheng, Xiaodan
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Article History
Received: 26 December 2023
Accepted: 20 April 2024
First Online: 27 April 2024
Declarations
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: Each participant in CHARLS cohort which was conducted under Peking University’s ethics review committee gave their informed permission before taking part (IRB00001052-11015). In addition, the Declaration of Helsinki was followed during our research. The necessary standards and legislation were followed in the execution of all procedures, including the declarations in “Declarations” section.
: Not applicable.
: The authors declare that they have no competing interests.
