[1] Japanese Red Cross Kyoto Daini, Dept Gastroenterol, Kyoto, Japan
[2] Japanese Red Cross Kyoto Daiichi Hosp, Dept Gastroenterol, Kyoto, Japan
[3] Musashino Red Cross Hosp, Dept Gastroenterologyand Hepatol, 1-26-1 Kyonan Cho, Musashino, Tokyo 1808610, Japan
[4] Japanese Red Cross Med Ctr, Dept Gastroenterol, Tokyo, Japan
[5] Japanese Red Cross Okayama Hosp, Dept Gastroenterol, Tokyo, Japan
[6] Hiroshima Red Cross Hosp, Dept Gastroenterol, Hiroshima, Japan
[7] Atom Bomb Survivors Hosp, Hiroshima, Japan
[8] Japanese Red Cross Asahikawa Hosp, Dept Gastroenterol, Asahikawa, Japan
[9] Ishinomaki Red Cross Hosp, Dept Gastroenterol, Ishinomaki, Japan
[10] Matsuyama Red Cross Hosp, Ctr Liver Biliary Pancreat Dis, Matsuyama, Japan
[11] Ise Red Cross Hosp, Dept Gastroenterol & Hepatol, Ise, Japan
[12] Tottori Red Cross Hosp, Dept Gastroenterol, Tottori, Japan
[13] Otsu Red Cross Hosp, Dept Gastroenterol, Otsu, Japan
[14] Takamatsu Red Cross Hosp, Dept Gastroenterol & Hepatol, Takamatsu, Japan
[15] Matsue Red Cross Hosp, Dept Gastroenterol, Matsue, Japan
[16] Oita Red Cross Hosp, Dept Gastroenterol, Oita, Japan
[17] Osaka Red Cross Hosp, Dept Gastroenterol & Hepatol, Osaka, Japan
[18] Karatsu Red Cross Hosp, Dept Internal Med, Saga, Japan
[19] Japanese Red Cross Gifu Hosp, Dept Gastroenterol, Gifu, Japan
[20] Japanese Red Cross Nagasaki Genbaku Hosp, Dept Gastroenterol, Nagasaki, Japan
[21] Hatano Red Cross Hosp, Dept Gastroenterol, Hatano, Japan
[22] Masuda Red Cross Hosp, Dept Gastroenterol, Masuda, Japan
[23] Fukaya Red Cross Hosp, Dept Gastroenterol, Saitama, Japan
[24] Japanese Red Cross Akita Hosp, Dept Gastroenterol, Akita, Japan
[25] Toyama Red Cross Hosp, Dept Gastroenterol, Toyama, Japan