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Authors
He, Lei
Zhou, Shuyi
Liu, Zilan
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Funding
Funding for this research was provided by:
Social Science Funds of Hunan (17YBQ067)
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Article History
Received: 17 December 2019
Accepted: 9 June 2020
First Online: 22 June 2020
Compliance with ethical standardsCompliance with ethical standards
:
: The authors declare that they have no conflict of interest.
