Ohshima, Kenji
Nojima, Satoshi
Tahara, Shinichiro
Kurashige, Masako
Hori, Yumiko
Hagiwara, Kohei
Okuzaki, Daisuke
Oki, Shinya
Wada, Naoki
Ikeda, Jun-ichiro
Kanai, Yoshikatsu
Morii, Eiichi
Article History
Received: 25 October 2016
Accepted: 27 February 2017
First Online: 30 March 2017
Competing interests
: The authors declare no competing financial interests.