authors TANAKA, Satoru Nagasaki, Shinya OHE, Toshiaki HIRONAGA, Michihiko MURAOKA, Susumu YUI, Mikazu SENOO, Muneaki FUJIWARA, Ai HAGA, Kazuko SAKAMOTO, Hiroyuki FUJITA, Hideki ISHIZAKI, Kanjiro AMANO, Hiroshi