Sato, Yusuke
Goto, Eiji
Shibata, Yuri
Kubota, Yuji
Yamagata, Atsushi
Goto-Ito, Sakurako
Kubota, Keiko
Inoue, Jun-ichiro
Takekawa, Mutsuhiro http://orcid.org/0000-0002-8027-3847
Tokunaga, Fuminori
Fukai, Shuya
Article History
Received: 13 August 2014
Accepted: 8 January 2015
First Online: 16 February 2015
Competing interests
: The authors declare no competing financial interests.