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Authors
He, Ke-Yao
Zhang, Cheng
Duan, Yi-Ru
Huang, Guo-Lei
Yang, Chun-Yan
Lu, Xing-Rui
Zheng, Cai-Juan
Chen, Guang-Ying
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Article History
Received: 17 January 2017
Revised: 11 March 2017
Accepted: 4 April 2017
First Online: 3 May 2017
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.
