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Authors
Yang, Qian
Yu, Tong
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Funding
Funding for this research was provided by:
Anhui Provincial Philosophy and Social Science Planning Project (AHSKY2021D32, AHSKY2021D32)
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Article History
Received: 20 March 2024
Accepted: 21 November 2024
First Online: 4 December 2024
Declarations
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: This study is a secondary analysis using CLHLS databases. This study Ethics Committees of Peking University and Duke University approved the ethics of the study (IRB00001052–13074). All methods were carried out in accordance with The Declaration of Helsinki. All included participants or their legal representatives provided written consent forms in the surveys.
: Not applicable.
: The authors declare no competing interests.
