Luo, Zhihuang
Li, Jun
Li, Zhaokai
Hung, Ling-Yan http://orcid.org/0000-0002-0040-553X
Wan, Yidun http://orcid.org/0000-0003-4318-8464
Peng, Xinhua http://orcid.org/0000-0001-5260-2976
Du, Jiangfeng
Article History
Received: 4 July 2017
Accepted: 6 September 2017
First Online: 16 October 2017
Competing interests
: The authors declare no competing financial interests.