Nakano, Yasuhiro
Matoba, Tetsuya
Tokutome, Masaki
Funamoto, Daiki
Katsuki, Shunsuke
Ikeda, Gentaro
Nagaoka, Kazuhiro
Ishikita, Ayako
Nakano, Kaku
Koga, Jun-ichiro
Sunagawa, Kenji
Egashira, Kensuke
Article History
Received: 20 May 2016
Accepted: 21 June 2016
First Online: 11 July 2016
Competing interests
: The authors declare no competing financial interests.