scientific article
author: Tsukasa Ito, Shin-Ya Nishio, Mirei Taniguchi, Shin-Ichi Usami, Yasuhiro Arai, Yasushi Naito, Yukihiko Kanda, Kyoko Nagai, Tetsuo Ikezono, Yoh-Ichiro Iwasa, Hidehiko Takeda, Chiharu Kihara, Takashi Ishino, Yuko Kataoka, Rie Horie