Tamaoki, Naritaka
Takahashi, Kazutoshi
Aoki, Hitomi
Iida, Kazuki
Kawaguchi, Tomoko
Hatakeyama, Daijirou
Inden, Masatoshi
Chosa, Naoyuki
Ishisaki, Akira
Kunisada, Takahiro
Shibata, Toshiyuki
Goshima, Naoki
Yamanaka, Shinya
Tezuka, Ken-ichi
Article History
Received: 18 July 2014
Accepted: 14 November 2014
First Online: 4 December 2014
Competing interests
: The authors declare no competing financial interests.