^○Keiji Matsuda, Keijiro Nozawa, Yojiro Hashiguchi, Mitsuo Tsukamoto, Yoshihisa Fukushima, Takuya Akahane, Ryu Shimada, Keisuke Nakamura, Tamuro Hayama, Takeshi Tsuchiya, Junko Tamura, Hisae Iinuma, Shoichi Fujii (Dept. of Surgery, Teikyo Univ. Sch. of Med., Tokyo, Japan)

^○Aiko Himeno, Shinjiro Yamaguchi, Eri Yoshida, Saki Kitano, Eiji Kimura, Fumihiko Sano, Ryotaro Uema, Katsuhiko Sato, Eri Tsumano, Akinori Shimayoshi, Mai Horie, taro Oshima, Maiko Murata, Masanori Miyazaki, Hideki Miyatake, Satoshi Egawa, Masahide Oshita (Osaka Police Hospital,Osaka,Japan)

^○Yasuhide Hiroyoshi, Akihiro Nishio, haruka Takenaka, Ryutarou Yoshida, Shou Miura, Naohiko Indou, Nobuyuki Sueyoshi, Yuko Yamaoka, Shinako Tochitani, Yasuko Miyanaga, Koichi Fujita, Nobuyuki Matuki, Emi Anami, Takahiro Anami, Saori Matsui, Etsuko Sugahara, Akihiko Watanabe, Atsushi Sugahara, Tsuyoshi Fujita, Hidekazu Mukai (Digestive Internal Medicine,Yodogawa Christian Hospital,Osaka,Japan)

^○Kentaro Izumi, naoto sakamoto, takashi murakami, Tomoyoshi Shibuya, akihito nagahara, sumio watanabe (Dept. of Gastroenterolology, Juntendo University School of Medicine, Japan)

^○Hitoshi Aoyagi, Koichiro Abe, Takayuki Okamura, Ken Shimada, Yu Kawashima, Satoshi Kimura, Meguru Adachi, Kotaro Miura, Akari Isono, Tadahisa Ebato, Ryo Miura, Toshihiko Arizumi, Takatsugu Yamamoto, Mitsuhiko Aiso, Yoriyuki Takamori, Hiroto Kita, Atsushi Tanaka, Yasushi Kuyama, Hajime Takikawa (Dept. of Medicine, Sch. of Med. Teikyo Univ., Tokyo, Japan)