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Authors
Su, Xiaofeng
Rehman, Latifur
Guo, Huiming
Li, Xiaokang
Cheng, Hongmei
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (31372004)
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Article History
Received: 20 June 2017
Revised: 23 July 2017
Accepted: 31 July 2017
First Online: 10 August 2017
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
Free to read: This content has been made available to all.
