Saito, Hikaru
Oikawa, Takaya
Hamamoto, Shin
Ishimaru, Yasuhiro
Kanamori-Sato, Miyu
Sasaki-Sekimoto, Yuko
Utsumi, Tomoya
Chen, Jing
Kanno, Yuri
Masuda, Shinji
Kamiya, Yuji
Seo, Mitsunori
Uozumi, Nobuyuki
Ueda, Minoru
Ohta, Hiroyuki
Article History
Received: 2 December 2013
Accepted: 14 December 2014
First Online: 4 February 2015
Competing interests
: The authors declare no competing financial interests.