Lan, Feng
Ma, Zongqing
Liu, Yongchang
Chen, Ning
Cai, Qi
Li, Huijun
Barua, Shaon
Patel, Dipak
Hossain, M. Shahriar Al
Kim, Jung Ho
Dou, Shi Xue
Article History
Received: 21 July 2014
Accepted: 28 August 2014
First Online: 26 September 2014
Competing interests
: The authors declare no competing financial interests.