Nakano, Chikara
Morimoto, Satoshi
Nakahigashi, Mitsutaka
Kusabe, Makiko
Ueda, Hiroko
Someya, Kazunori
Ichihara, Atsuhiro
Iwasaka, Toshiji
Shiojima, Ichiro
Article History
Received: 22 June 2014
Revised: 21 September 2014
Accepted: 27 September 2014
First Online: 4 December 2014
Competing interests
: The authors declare no conflict of interest.