Asano, Yoshinori
Kawase, Tatsuya
Okabe, Atsushi
Tsutsumi, Shuichi
Ichikawa, Hitoshi
Tatebe, Satoko
Kitabayashi, Issay
Tashiro, Fumio
Namiki, Hideo
Kondo, Tadashi
Semba, Kentaro
Aburatani, Hiroyuki
Taya, Yoichi
Nakagama, Hitoshi
Ohki, Rieko
Article History
Received: 25 September 2015
Accepted: 2 December 2015
First Online: 12 January 2016
Competing interests
: The authors declare no competing financial interests.