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Authors
Zhang, Boping
Wu, Guoxi
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Funding
Funding for this research was provided by:
science and technology key project of Henan Province, China (NO.172102210462)
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Article History
Received: 30 October 2018
Accepted: 24 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: We approved.
: We agree.
: The authors declare that they have no competing interests.
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