Updates are available Erratum dated 2015-03-12
Click to view Erratum: https://doi.org/10.1038/srep08951
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Authors
Xin, Yong-Juan
Yuan, Bo
Yu, Bin
Wang, Yu-Qing
Wu, Jia-Jia
Zhou, Wen-Hao
Qiu, Zilong
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Article History
Received: 20 August 2014
Accepted: 4 December 2014
First Online: 6 January 2015
Change Date: 12 March 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 not been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.
