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Authors
Sun, Jia
Sun, Jintang
Song, Bingfeng
Zhang, Lin
Shao, Qianqian
Liu, Yanguo
Yuan, Daoying
Zhang, Yun
Qu, Xun
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Article History
Received: 29 July 2016
Accepted: 6 October 2016
First Online: 24 October 2016
Competing interests
: The authors declare no competing financial interests.
