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Authors
Chen, Wenqing
Huang, Ding
Liu, Nan
Zhang, Yingjun
Badgery, Warwick B.
Wang, Xiaoya
Shen, Yue
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Article History
Received: 12 October 2014
Accepted: 23 April 2015
First Online: 3 July 2015
Competing interests
: The authors declare no competing financial interests.
