Kuroda, Makoto
Niwa, Shoichi
Sekizuka, Tsuyoshi
Tsukagoshi, Hiroyuki
Yokoyama, Masaru
Ryo, Akihide
Sato, Hironori
Kiyota, Naoko
Noda, Masahiro
Kozawa, Kunihisa
Shirabe, Komei
Kusaka, Takashi
Shimojo, Naoki
Hasegawa, Shunji
Sugai, Kazuko
Obuchi, Masatsugu
Tashiro, Masato
Oishi, Kazunori
Ishii, Haruyuki
Kimura, Hirokazu
Article History
Received: 17 December 2014
Accepted: 6 January 2015
First Online: 2 February 2015
Competing interests
: The authors declare no competing financial interests.