Yan, Li
Chen, Yaomin
Li, Wubo
Huang, Xiumei
Badie, Hedieh
Jian, Fan
Huang, Timothy
Zhao, Yingjun
Cohen, Stanley N.
Li, Limin
Zhang, Yun-wu
Luo, Huanmin
Tu, Shichun
Xu, Huaxi
Article History
Received: 8 June 2015
Accepted: 16 November 2015
First Online: 6 January 2016
Competing interests
: The authors declare no competing financial interests.