Wang, Nannan
Yang, Zhuxian
Xu, Fang http://orcid.org/0000-0002-7357-5177
Thummavichai, Kunyapat
Chen, Hongmei
Xia, Yongde http://orcid.org/0000-0001-9686-8688
Zhu, Yanqiu http://orcid.org/0000-0003-3659-5643
Article History
Received: 4 May 2017
Accepted: 5 September 2017
First Online: 19 September 2017
Competing Interests
: The authors declare that they have no competing interests.