Okubo, Hirofumi
Kushiyama, Akifumi
Sakoda, Hideyuki
Nakatsu, Yusuke
Iizuka, Masaki
Taki, Naoyuki
Fujishiro, Midori
Fukushima, Toshiaki
Kamata, Hideaki
Nagamachi, Akiko
Inaba, Toshiya
Nishimura, Fusanori
Katagiri, Hideki
Asahara, Takashi
Yoshida, Yasuto
Chonan, Osamu
Encinas, Jeffery
Asano, Tomoichiro
Article History
Received: 18 August 2015
Accepted: 22 December 2015
First Online: 28 January 2016
Competing interests
: The authors declare no competing financial interests.