Qu, Dan
Zheng, Min
Zhang, Ligong
Zhao, Haifeng
Xie, Zhigang
Jing, Xiabin
Haddad, Raid E.
Fan, Hongyou
Sun, Zaicheng
Article History
Received: 15 April 2014
Accepted: 27 May 2014
First Online: 18 June 2014
Change Date: 16 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 not been fixed in the paper.
Competing interests
: The authors declare no competing financial interests.