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Authors
Li, Xiong
Tan, Yuhua
Li, Shanqing
Wang, Xiaoxin
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Article History
Received: 22 December 2021
Accepted: 12 May 2022
First Online: 19 May 2022
Declarations
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: The study was conducted according to the principles in the declaration of Helsinki-version 2008. The academic committees of Honghe Health Vocational College as well as Yunnan Technology and Business University approved the research protocol. Informed consent was obtained from each participant prior to data collection. They were also informed of the purpose of the study, there were no foreseeable risks or harms in the study.
: Not applicable.
: The authors declare that they have no competing interests.
