Takagi, Shigeyuki
Iijima, Yuki
Sato, Toyoto
Saitoh, Hiroyuki
Ikeda, Kazutaka
Otomo, Toshiya
Miwa, Kazutoshi
Ikeshoji, Tamio
Orimo, Shin-ichi
Article History
Received: 14 December 2016
Accepted: 3 February 2017
First Online: 13 March 2017
Competing interests
: The authors declare no competing financial interests.