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Authors
Fang, Changchun http://orcid.org/0000-0003-0844-4987
Feng, Xiaotian
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Funding
Funding for this research was provided by:
Jilin Province Philosophy and Social Science Planning Fund Office (17JDB011)
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Article History
Received: 15 July 2020
Accepted: 3 September 2020
First Online: 23 October 2020
Competing interests
: The authors declare they have no competing interests.
