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Authors
Liu, Fengming https://orcid.org/0000-0001-6886-863X
Li, Mingcai
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Funding
Funding for this research was provided by:
the National Social Science Foundation of China (14BTQ049)
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Article History
Received: 21 March 2016
Accepted: 9 May 2018
First Online: 15 May 2018
