Hino, Hitoshi
Dai, Ping
Yoshida, Tatsushi
Hatakeyama, Tomoya
Harada, Yoshinori
Otsuji, Eigo
Okuda, Tsukasa
Takamatsu, Tetsuro
Article History
Received: 26 September 2014
Accepted: 22 September 2015
First Online: 20 October 2015
Competing interests
: The authors declare no competing financial interests.