Nakamura, Akinori
Fueki, Noboru
Shiba, Naoko
Motoki, Hirohiko
Miyazaki, Daigo
Nishizawa, Hitomi
Echigoya, Yusuke
Yokota, Toshifumi
Aoki, Yoshitsugu
Takeda, Shin'ichi
Article History
Received: 14 December 2015
Revised: 22 January 2016
Accepted: 26 February 2016
First Online: 24 March 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.