Wu, Linkun
Wang, Juanying
Huang, Weimin
Wu, Hongmiao
Chen, Jun
Yang, Yanqiu
Zhang, Zhongyi
Lin, Wenxiong
Article History
Received: 24 March 2015
Accepted: 7 October 2015
First Online: 30 October 2015
Change Date: 7 January 2016
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.