Kimura, Masashi
Tokita, Yoshihito
Machida, Junichiro
Shibata, Akio
Tatematsu, Tadashi
Tsurusaki, Yoshinori
Miyake, Noriko
Saitsu, Hirotomo
Miyachi, Hitoshi
Shimozato, Kazuo
Matsumoto, Naomichi
Nakashima, Mitsuko
Article History
Received: 12 May 2014
Accepted: 13 June 2014
First Online: 31 July 2014
Competing interests
: The authors declare no conflict of interest.