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Authors
Sang, Xiang-Lai
Fan, Yu-Fang
Liang, Xiao-Cheng
Li, Jian-Dong
Chen, Yan
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Funding
Funding for this research was provided by:
Gansu Provincial Science and Technology Plan (No. 20CX4ZA024)
Gansu Provincial Science and Technology Plan (No. 20CX4ZA024)
National Natural Science Foundation of China (No. 81673175)
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Article History
Received: 22 December 2024
Accepted: 22 April 2026
First Online: 8 May 2026
Declarations
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: This study adhered to the guidelines of the Declaration of Helsinki and was approved by the ethic committee of Gansu Provincial Center for Disease Control and Prevention (2019009). Written and informed consent was sought from all respondents before the interview.
: Not applicable.
: The authors declare no competing interests.
