Tomita, Yohei
Kurihara, Toshihide
Uchida, Atsuro
Nagai, Norihiro
Shinoda, Hajime
Tsubota, Kazuo
Ozawa, Yoko
Article History
Received: 26 November 2014
Accepted: 23 July 2015
First Online: 2 September 2015
Competing interests
: The authors declare no competing financial interests.