Imagawa, Kazuo
Takayama, Kazuo
Isoyama, Shigemi
Tanikawa, Ken
Shinkai, Masato
Harada, Kazuo
Tachibana, Masashi
Sakurai, Fuminori
Noguchi, Emiko
Hirata, Kazumasa
Kage, Masayoshi
Kawabata, Kenji
Sumazaki, Ryo
Mizuguchi, Hiroyuki
Article History
Received: 19 July 2016
Accepted: 23 November 2016
First Online: 2 February 2017
Competing interests
: The authors declare no competing financial interests.