Sunamura, Naohiro
Ohira, Takahito
Kataoka, Miki
Inaoka, Daigo
Tanabe, Hideyuki
Nakayama, Yuji
Oshimura, Mitsuo
Kugoh, Hiroyuki
Article History
Received: 12 October 2015
Accepted: 11 January 2016
First Online: 12 February 2016
Competing interests
: The authors declare no competing financial interests.