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Authors
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Funding
Funding for this research was provided by:
Scientific Research Program of the Higher Education Institutions of Gansu Province (2020A-016)
Foundation of Northwest Normal University of China (NWNU-LKQN2019-18, NWNU-LKQN2020-21)
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Article History
Received: 7 April 2021
Accepted: 13 July 2022
First Online: 1 August 2022
Declarations
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: Not applicable.
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: Not applicable.
: The authors declare that they have no conflicts of interest to this work.
