Doi, Hiroshi
Ushiyama, Masao
Baba, Takashi
Tani, Katsuko
Shiina, Masaaki
Ogata, Kazuhiro
Miyatake, Satoko
Fukuda-Yuzawa, Yoko
Tsuji, Shoji
Nakashima, Mitsuko
Tsurusaki, Yoshinori
Miyake, Noriko
Saitsu, Hirotomo
Ikeda, Shu-ichi
Tanaka, Fumiaki
Matsumoto, Naomichi
Yoshida, Kunihiro
Article History
Received: 4 September 2014
Accepted: 4 November 2014
First Online: 24 November 2014
Competing interests
: The authors declare no competing financial interests.