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Wang, Xiaoxuan https://orcid.org/0000-0002-0818-9501
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Article History
Received: 8 October 2022
Accepted: 4 September 2025
First Online: 24 October 2025
Competing interests
: The author declares no competing interests.
: This article does not contain any studies with human participants performed by any of the authors. This article uses mainly the case study method and the historical documentary research method. Our case subjects are theoretical research; as such, experimental data and biological materials are not involved in the analysis of the cases, and none of the historical documents we have cited deal with ethical issues. Therefore, this study does not need to obtain ethical approval.
: This article does not contain any studies with human participants performed by any of the authors.
