Hirashima, Shingo
Ohta, Keisuke
Kanazawa, Tomonoshin
Uemura, Kei-ichiro
Togo, Akinobu
Yoshitomi, Munetake
Okayama, Satoko
Kusukawa, Jingo
Nakamura, Kei-ichiro
Article History
Received: 17 July 2015
Accepted: 30 October 2015
First Online: 2 December 2015
Competing interests
: The authors declare no competing financial interests.