Sato, Wataru
Kochiyama, Takanori
Uono, Shota
Kubota, Yasutaka
Sawada, Reiko
Yoshimura, Sayaka
Toichi, Motomi
Article History
Received: 4 March 2015
Accepted: 21 October 2015
First Online: 20 November 2015
Competing interests
: The authors declare no competing financial interests.