Shoichiro Izawa, Kazuhisa Matsumoto, Kanako Kadowaki, Toshifumi Nakamura, Norio Wada, Takuyuki Katabami, Yoichi Nozato, Ryuji Okamoto, Takamasa Ichijo, Daisuke Taura, Masanori Murakami, Miki Kakutani, Takashi Yoneda, Minemori Watanabe, Yutaka Takahashi, Shintaro Okamura, Katsutoshi Takahashi, Hiroki Kobayashi, Mitsuhide Naruse, Kenichi Yokota, Masakatsu Sone, the JPAS-II Study Group