[1] Tohoku Univ, Div Gastroenterol, Grad Sch Med, 1-1 Seiryomachi,Aoba Ku, Sendai 9808574, Japan
[2] Kansai Med Univ, Dept Internal Med 3, Osaka, Japan
[3] Kyushu Univ, Grad Sch Med Sci, Dept Med & Bioregulatory Sci, Fukuoka, Japan
[4] Shinshu Univ, Sch Med, Dept Med, Div Gastroenterol & Hepatol, Matsumoto, Japan
[5] Nagoya City Univ, Grad Sch Med Sci, Dept Gastroenterol & Metab, Nagoya, Japan
[6] Sapporo Med Univ, Sch Med, Dept Gastroenterol & Hepatol, Sapporo, Japan
[7] Juntendo Univ, Grad Sch Med, Dept Gastroenterol, Tokyo, Japan
[8] Jichi Med Univ, Dept Med, Div Gastroenterol, Shimotsuke, Tochigi, Japan
[9] Kindai Univ, Fac Med, Dept Gastroenterol & Hepatol, Osaka, Japan
[10] Kobe Univ, Grad Sch Med, Dept Internal Med, Div Gastroenterol, Kobe, Japan
[11] Kanazawa Univ, Grad Sch Med Sci, Dept Radiol, Kanazawa, Japan
[12] Kagoshima Univ, Grad Sch Med & Dent Sci, Digest & Lifestyle Dis, Kagoshima, Japan
[13] Fukuoka Univ, Chikushi Hosp, Dept Gastroenterol, Fukuoka, Japan
[14] Kyoto Univ, Grad Sch Med, Dept Gastroenterol & Hepatol, Kyoto, Japan
[15] Kyoto Prefectural Univ Med, Grad Sch Med Sci, Dept Mol Gastroenterol & Hepatol, Kyoto, Japan
[16] Keio Univ, Sch Med, Dept Internal Med, Div Gastroenterol & Hepatol, Tokyo, Japan
[17] Tokyo Womens Med Univ, Yachiyo Med Ctr, Dept Gastroenterol, Yachiyo, Japan
[18] Yokohama City Univ, Grad Sch Med, Div Gastroenterol, Yokohama, Japan
[19] Teikyo Univ, Sch Med, Dept Med, Tokyo, Japan
[20] Kochi Univ, Kochi Med Sch, Dept Gastroenterol & Hepatol, Kochi, Japan
[21] Kyushu Univ, Fac Dent Sci, Fukuoka, Japan
[22] Kansai Med Univ, Kori Hosp, Dept Internal Med, Neyagawa, Japan
[23] Kindai Univ, Fac Med, Dept Surg, Osaka, Japan