Yoshizumi, Takuma
Ichinohe, Takeshi
Sasaki, Osamu
Otera, Hidenori
Kawabata, Shun-ichiro
Mihara, Katsuyoshi
Koshiba, Takumi
Article History
Received: 29 January 2014
Accepted: 14 July 2014
First Online: 20 August 2014
Competing interests
: The authors declare no competing financial interests.