Oshima, Masamitsu
Inoue, Kaoru
Nakajima, Kei
Tachikawa, Tetsuhiko
Yamazaki, Hiromichi
Isobe, Tomohide
Sugawara, Ayaka
Ogawa, Miho
Tanaka, Chie
Saito, Masahiro
Kasugai, Shohei
Takano-Yamamoto, Teruko
Inoue, Takashi
Tezuka, Katsunari
Kuboki, Takuo
Yamaguchi, Akira
Tsuji, Takashi
Article History
Received: 19 February 2014
Accepted: 18 July 2014
First Online: 13 August 2014
Competing interests
: The authors declare no competing financial interests.