Yue, Youfeng
Kurokawa, Takayuki
Haque, Md Anamul
Nakajima, Tasuku
Nonoyama, Takayuki
Li, Xufeng
Kajiwara, Itsuro
Gong, Jian Ping
Article History
Received: 12 March 2014
Accepted: 10 July 2014
First Online: 18 August 2014
Competing interests
: The authors declare no competing financial interests.