Fujiwara, Yuichiro
Kondo, Hiroko X.
Shirota, Matsuyuki
Kobayashi, Megumi
Takeshita, Kohei
Nakagawa, Atsushi
Okamura, Yasushi
Kinoshita, Kengo
Article History
Received: 8 December 2015
Accepted: 17 March 2016
First Online: 5 April 2016
Competing interests
: The authors declare no competing financial interests.