Masuda, Takao
Sato, Yoko
Huang, Yu-Lun
Koi, Satoshi
Takahata, Tatsuro
Hasegawa, Atsuhiko
Kawai, Gota
Kannagi, Mari
Article History
Received: 25 August 2015
Accepted: 4 November 2015
First Online: 3 December 2015
Competing interests
: The authors declare no competing financial interests.