Updates are available Erratum dated 2015-01-15
Click to view Erratum: https://doi.org/10.1038/srep07940
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Authors
Liu, Bin
Tan, Xiaoyu
Liang, Jian
Wu, Shixing
Liu, Jie
Zhang, Qingyu
Zhu, Runzhi
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Article History
Received: 16 May 2014
Accepted: 27 October 2014
First Online: 13 November 2014
Change Date: 15 January 2015
Change Type: Update
Change Details: A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.
