Kobayashi, Kazuyoshi
Sakurai, Kouhei
Hiramatsu, Hiroaki
Inada, Ken-ichi
Shiogama, Kazuya
Nakamura, Shinya
Suemasa, Fumiko
Kobayashi, Kyosuke
Imoto, Seiya
Haraguchi, Takeshi
Ito, Hiroaki
Ishizaka, Aya
Tsutsumi, Yutaka
Iba, Hideo
Article History
Received: 21 October 2014
Accepted: 15 January 2015
First Online: 12 February 2015
Competing interests
: The authors declare no competing financial interests.