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Authors
Liu, Liangbin
Cheng, Yafei
Zhu, Lili
Lee, Shuit-Tong
Liao, Fan
Shao, Mingwang
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Article History
Received: 27 May 2016
Accepted: 17 August 2016
First Online: 6 September 2016
Competing interests
: The authors declare no competing financial interests.
