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Authors
Zhang, Cheng-Jian
Wu, Hai-Lin
Li, Yang
Yang, Jia-Liang
Zhang, Xing-Hong http://orcid.org/0000-0001-6543-0042
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Article History
Received: 16 December 2017
Accepted: 10 May 2018
First Online: 30 May 2018
Competing interests
: The authors declare no competing interests.
