Cheng, Guangming http://orcid.org/0000-0001-5852-1341
Miao, Chunyang
Qin, Qingquan
Li, Jing
Xu, Feng
Haftbaradaran, Hamed
Dickey, Elizabeth C.
Gao, Huajian
Zhu, Yong
Article History
Received: 15 December 2014
Accepted: 1 June 2015
First Online: 13 July 2015
Competing interests
: The authors declare no competing financial interests.