Updates are available Correction dated 2014-07-11
Click to view Correction: https://doi.org/10.1038/srep05674
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Authors
Li, Xinli
Xu, Jiuhong
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Article History
Received: 29 January 2014
Accepted: 15 April 2014
First Online: 9 May 2014
Change Date: 11 July 2014
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.
