Ikuta, Tetsuro
Takaki, Yoshihiro
Nagai, Yukiko
Shimamura, Shigeru
Tsuda, Miwako
Kawagucci, Shinsuke
Aoki, Yui
Inoue, Koji
Teruya, Morimi
Satou, Kazuhito
Teruya, Kuniko
Shimoji, Makiko
Tamotsu, Hinako
Hirano, Takashi
Maruyama, Tadashi
Yoshida, Takao
Article History
Received: 8 April 2015
Revised: 10 August 2015
Accepted: 13 August 2015
First Online: 29 September 2015
Competing interests
: The authors declare no conflict of interest.