Hayashi, Junji
Inoue, Shota
Kim, Kwang
Yoneda, Kazunari
Kawarabayasi, Yutaka
Ohshima, Toshihisa
Sakuraba, Haruhiko
Article History
Received: 19 March 2015
Accepted: 2 June 2015
First Online: 8 July 2015
Competing interests
: The authors declare no competing financial interests.