Kawamoto, Ryuichi
Kohara, Katsuhiko
Katoh, Tateaki
Kusunoki, Tomo
Ohtsuka, Nobuyuki
Abe, Masanori
Kumagi, Teru
Miki, Tetsuro
Article History
Received: 24 October 2013
Revised: 16 May 2014
Accepted: 19 May 2014
First Online: 26 June 2014
Competing interests
: The authors declare no conflict of interest.