Yasutake, Kenichiro
Horita, Noriko
Umeki, Yoko
Misumi, Yukiko
Murata, Yusuke
Kajiyama, Tomomi
Ogimoto, Itsuro
Tsuchihashi, Takuya
Enjoji, Munechika
Article History
Received: 16 March 2015
Revised: 7 August 2015
Accepted: 9 September 2015
First Online: 12 November 2015
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.