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Authors
Yan, Rui
Li, Xiaocui
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Funding
Funding for this research was provided by:
the project of 12th Five-Year planning of Education Science in Shanxi (GH15026)
the Fundamental Research Funds for the Central Universities (ZY1821)
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License Information
Text and Data Mining valid from 2018-04-24
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More Information
Article History
Received: 31 December 2017
Accepted: 17 April 2018
First Online: 24 April 2018
Competing interests
: The authors declare to have no competing interests.
