Nguyen, Lan Huong
Gao, Mingyong
Lin, Junquan
Wu, Wutian
Wang, Jun
Chew, Sing Yian
Article History
Received: 14 October 2016
Accepted: 6 January 2017
First Online: 7 February 2017
Change Date: 24 August 2018
Change Type: Update
Change Details: A correction to this article has been published and is linked from 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.