Yaginuma, Hideyuki
Kawai, Shinnosuke
Tabata, Kazuhito V.
Tomiyama, Keisuke
Kakizuka, Akira
Komatsuzaki, Tamiki
Noji, Hiroyuki
Imamura, Hiromi
Article History
Received: 21 May 2014
Accepted: 11 September 2014
First Online: 6 October 2014
Competing interests
: The authors declare no competing financial interests.