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Authors
Xu, Jinhu
Hou, Jiangyong
Geng, Yan
Zhang, Suxia
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Funding
Funding for this research was provided by:
the National Natural Science Foundation of China (11701445)
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Article History
Received: 21 November 2017
Accepted: 15 March 2018
First Online: 27 March 2018
Competing interests
: The authors declare that they have no competing interests.
