Nakajima, Kaoru
Kitayama, Takumi
Hayashi, Hiroaki
Matsuda, Makoto
Sataka, Masao
Tsujimoto, Masahiko
Toulemonde, Marcel
Bouffard, Serge
Kimura, Kenji
Article History
Received: 2 April 2015
Accepted: 27 July 2015
First Online: 21 August 2015
Competing interests
: The authors declare no competing financial interests.