Kimura, Junichi
Takuwa, Itaru
Matsushima, Masaaki
Shimizu, Takao
Uchida, Hiroshi
Kiguchi, Takanori
Shiraishi, Takahisa
Konno, Toyohiko J.
Shibata, Tatsuo
Osada, Minoru
Sasaki, Takayoshi
Funakubo, Hiroshi
Article History
Received: 11 September 2015
Accepted: 11 January 2016
First Online: 15 February 2016
Competing interests
: The authors declare no competing financial interests.