Zhang, Gaocai
Chen, Li
Yang, Lingli
Hua, Xiaodong
Zhou, Beiqun
Miao, Zhigang
Li, Jizhen
Hu, Hua
Namaka, Michael
Kong, Jiming
Xu, Xingshun
Article History
Received: 13 August 2015
Accepted: 19 October 2015
First Online: 17 November 2015
Competing interests
: The authors declare no competing financial interests.