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Authors
Zhou, Jia-He
Kong, Wei-Long
Wang, Xing-Bang
Zhang, Zheng-Feng
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Funding
Funding for this research was provided by:
Outstanding Innovative Talents Cultivation Funded Programs 2024 of Renmin University of China
National Social Science Foundation of China (21AZD041)
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Article History
Received: 12 June 2025
Accepted: 17 November 2025
First Online: 6 December 2025
Declarations
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: This study does not involve human participants, medical procedures, or any form of experimentation covered under the Helsinki Declaration. As such, our institution has determined that ethical approval is not required for this study.
: This research relied exclusively on publicly available statistical yearbooks and databases. No primary data is collected directly from human participants. As such, individual informed consent is not required for this study.
: The authors declare no competing interests.
