Hirokawa, Megumi
Morita, Hiroyuki
Tajima, Tomoyuki
Takahashi, Atsushi
Ashikawa, Kyota
Miya, Fuyuki
Shigemizu, Daichi
Ozaki, Kouichi
Sakata, Yasuhiko
Nakatani, Daisaku
Suna, Shinichiro
Imai, Yasushi
Tanaka, Toshihiro http://orcid.org/0000-0001-6201-9784
Tsunoda, Tatsuhiko
Matsuda, Koichi http://orcid.org/0000-0001-7292-2686
Kadowaki, Takashi
Nakamura, Yusuke
Nagai, Ryozo
Komuro, Issei
Kubo, Michiaki
Article History
Received: 2 December 2013
Revised: 1 May 2014
Accepted: 8 May 2014
First Online: 11 June 2014
Competing interests
: The authors declare no conflict of interest.