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Authors
Xu, Qingyu
Sheng, Yan
Khalid, M.
Cao, Yanqiang
Wang, Yutian
Qiu, Xiangbiao
Zhang, Wen
He, Maocheng
Wang, Shuangbao
Zhou, Shengqiang
Li, Qi
Wu, Di
Zhai, Ya
Liu, Wenqing
Wang, Peng
Xu, Y. B.
Du, Jun
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Article History
Received: 29 August 2014
Accepted: 18 February 2015
First Online: 13 March 2015
Competing interests
: The authors declare no competing financial interests.
