Morikawa, Takamitsu J.
Fujita, Hideaki
Kitamura, Akira
Horio, Takashi
Yamamoto, Johtaro
Kinjo, Masataka
Sasaki, Akira
Machiyama, Hiroaki
Yoshizawa, Keiko
Ichimura, Taro
Imada, Katsumi
Nagai, Takeharu
Watanabe, Tomonobu M.
Article History
Received: 23 October 2015
Accepted: 9 February 2016
First Online: 9 March 2016
Competing interests
: The authors declare no competing financial interests.