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Authors
Shi, Xiaohua
Wu, Shafei
Sun, Jian
Liu, Yuanyuan
Zeng, Xuan
Liang, Zhiyong
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Article History
Received: 31 August 2016
Accepted: 10 March 2017
First Online: 7 April 2017
Competing interests
: The authors declare no competing financial interests.
