Minoura, Itsushi
Takazaki, Hiroko
Ayukawa, Rie
Saruta, Chihiro
Hachikubo, You
Uchimura, Seiichi
Hida, Tomonobu
Kamiguchi, Hiroyuki
Shimogori, Tomomi
Muto, Etsuko
Article History
Received: 26 December 2014
Accepted: 28 October 2015
First Online: 18 January 2016
Competing interests
: The authors declare no competing financial interests.