Yamagata, Atsushi
Sato, Yusuke
Goto-Ito, Sakurako
Uemura, Takeshi
Maeda, Asami
Shiroshima, Tomoko
Yoshida, Tomoyuki
Fukai, Shuya
Article History
Received: 2 December 2014
Accepted: 16 March 2015
First Online: 19 May 2015
Competing interests
: The authors declare no competing financial interests.