Itagaki, Tomohiro
Kawamata, Ayano
Takeuchi, Miho
Hamada, Keisuke
Iwabuchi, Yoshiharu
Eguchi, Tadashi
Kudo, Fumitaka
Usui, Takeo
Kanoh, Naoki
Article History
Received: 5 December 2015
Revised: 22 December 2015
Accepted: 24 December 2015
First Online: 27 January 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.