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Authors
Xin, Yu
Ren, Xiaohui
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Funding
Funding for this research was provided by:
The project of the Science and Technology of Sichuan Province (NO2022JDR0196, NO2022JDR0196)
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Article History
Received: 2 November 2022
Accepted: 12 May 2023
First Online: 27 May 2023
Declarations
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: The data source of this study is provincial level data, so it does not involve ethical issues.Not applicable.
: Not applicable.
: The authors declare no competing interests.
