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Authors
Guo, Qi
Chen, Yusi
Guo, Lijuan
Jiang, Tiejian
Lin, Zhangyuan
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Article History
Received: 15 January 2016
Revised: 29 May 2016
Accepted: 1 June 2016
First Online: 24 August 2016
Competing interests
: The authors declare no conflicts of interest.
