Weng, Shinuo
Shao, Yue http://orcid.org/0000-0001-7548-3551
Chen, Weiqiang http://orcid.org/0000-0002-9469-8328
Fu, Jianping http://orcid.org/0000-0001-9629-6739
Article History
Received: 3 January 2015
Accepted: 4 May 2016
First Online: 30 May 2016
Competing interests
: The authors declare no competing financial interests.