Yang, Mingjuan
Ke, Yuehua
Wang, Xuesong
Ren, Hang
Liu, Wei
Lu, Huijun
Zhang, Wenyi
Liu, Shiwei
Chang, Guohui
Tian, Shuguang
Wang, Lihua
Huang, Liuyu
Liu, Chao
Yang, Ruifu
Chen, Zeliang
Article History
Received: 10 March 2016
Accepted: 11 May 2016
First Online: 1 June 2016
Change Date: 11 July 2016
Change Type: Update
Change Details: The version of this Article previously published incorrectly listed Mingjuan Yang, and not Chao Liu, Ruifu Yang and Zeliang Chen as corresponding authors. Correspondence and request for materials should be addressed to liuchao9588@sina.com, ruifuyang@gmail.com and zeliangchen@yahoo.com. This has now been corrected in the PDF and HTML version of the paper.
Competing interests
: The authors declare no competing financial interests.