Wang, Liye
Huang, Lingli
Pan, Yuanhu
Kuča, Kamil
Klímová, Blanka
Wu, Qinghua
Xie, Shuyu
Ahmad, Ijaz
Chen, Dongmei
Tao, Yanfei
Wan, Dan
Liu, Zhenli
Yuan, Zonghui
Article History
Received: 29 July 2015
Accepted: 31 December 2015
First Online: 3 February 2016
Competing interests
: The authors declare no competing financial interests.