Fukawatase, Yoshihiro
Toyoda, Masashi
Okamura, Kohji
Nakamura, Ken-ichi
Nakabayashi, Kazuhiko
Takada, Shuji
Yamazaki-Inoue, Mayu
Masuda, Akira
Nasu, Michiyo
Hata, Kenichiro
Hanaoka, Kazunori
Higuchi, Akon
Takubo, Kaiyo
Umezawa, Akihiro
Article History
Received: 18 November 2013
Accepted: 4 June 2014
First Online: 27 June 2014
Competing interests
: The authors declare no competing financial interests.