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Authors
Zhou, Zheng http://orcid.org/0000-0003-0193-4246
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Funding
Funding for this research was provided by:
Department of Education, Fujian Province (JA15379)
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Article History
Received: 2 June 2018
Accepted: 18 September 2018
First Online: 26 September 2018
Competing interests
: The author declares that he has no competing interests.
