Lin, Wei http://orcid.org/0000-0003-4075-7414
Deng, Aihua
Wang, Zhang
Li, Ying
Wen, Tingyi
Wu, Long-Fei
Wu, Martin
Pan, Yongxin
Article History
Received: 22 February 2014
Revised: 27 April 2014
Accepted: 8 May 2014
First Online: 10 June 2014
Competing interests
: The authors declare no conflict of interest.