Zhang, Yumin
Yang, Cuihong
Wang, Weiwei
Liu, Jinjian
Liu, Qiang
Huang, Fan
Chu, Liping
Gao, Honglin
Li, Chen
Kong, Deling
Liu, Qian
Liu, Jianfeng
Article History
Received: 20 July 2015
Accepted: 20 January 2016
First Online: 15 February 2016
Change Date: 15 March 2016
Change Type: Update
Change Details: The HTML version of this Article previously published incorrectly listed Qiang Liu, and not Qian Liu, as a corresponding author. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.
Competing interests
: The authors declare no competing financial interests.