Hua, Hui
Liu, Sijia
Chen, Zhiyi
Bao, Ruiqi
Shi, Yaoyao
Hou, Linrui
Pang, Gang
Hui, Kwun Nam
Zhang, Xiaogang
Yuan, Changzhou
Article History
Received: 23 November 2015
Accepted: 14 January 2016
First Online: 11 February 2016
Change Date: 15 March 2016
Change Type: Update
Change Details: The version of this Article previously published omitted Linrui Hou and Kwun Nam Hui as corresponding authors. Correspondence and request for materials should also be addressed to houlr629@163.com and hizhui@umac.mo. This has now been corrected in the PDF and HTML versions of the paper.
Change Date: 14 April 2016
Change Type: Update
Change Details: The version of this Article previously published quoted an incorrect email address for Kwun Nam Hui. Correspondence and request for materials should also be addressed to bizhui@umac.mo. This has now been corrected in the HTML and PDF versions of the Article.
Competing interests
: The authors declare no competing financial interests.