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Authors
Fang, Debin
Xu, Liang
Liu, Yang
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Funding
Funding for this research was provided by:
the National Natural Science Foundation of China (No. 72243010)
the National Social Science Fund of China (No.19ZDA083)
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Article History
Received: 14 February 2026
Accepted: 17 April 2026
First Online: 30 April 2026
Declarations
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: This study did not involve human participants, human tissues, or animals. The analysis was based on secondary data obtained from publicly available databases and official statistical sources. Therefore, ethical approval and consent to participate were not required.
: Not applicable.
: The authors declare no competing interests.
