Wei, Jun
Long, Lingyun
Yang, Kai
Guy, Cliff
Shrestha, Sharad
Chen, Zuojia
Wu, Chuan
Vogel, Peter
Neale, Geoffrey
Green, Douglas R
Chi, Hongbo
Article History
Received: 6 October 2015
Accepted: 2 December 2015
First Online: 25 January 2016
Competing interests
: The authors declare no competing financial interests.