[1] Nagasaki Univ, Grad Sch Biomed Sci, Dept Gastroenterol & Hepatol, Nagasaki, Japan
[2] Natl Kyushu Canc Ctr, Clin Res Inst, Fukuoka, Japan
[3] Yamaguchi Univ, Grad Sch Med, Dept Biostat, Yamaguchi, Japan
[4] Minato Med Clin, Dept Internal Med, Fukuoka, Japan
[5] Natl Canc Ctr Hosp East, Dept Promot Drug & Diagnost Dev, Div Drug & Diagnost Dev Promot, Translat Res Support Off, Chiba, Japan
[6] Natl Canc Ctr Hosp East, Dept Hepatobiliary & Pancreat Oncol, Chiba, Japan
[7] Kagoshima City Hosp, Dept Med Oncol, Kagoshima, Japan
[8] Kagoshima Univ, Grad Sch Med & Dent Sci, Digest & Lifestyle Dis, Kagoshima, Japan
[9] Kurume Univ Hosp, Multidisciplinary Treatment Canc Ctr, Kurume, Fukuoka, Japan
[10] Kurume Univ, Sch Med, Dept Med, Div Gastroenterol, Fukuoka, Japan
[11] Saga Med Ctr Koseikan, Dept Pathol, Saga, Japan
[12] Japanese Red Cross Kumamoto Hosp, Dept Paediat, Kumamoto, Japan
[13] Karatsu Red Cross Hosp, Dept Internal Med, Saga, Japan
[14] Kyushu Hosp, Japan Community Healthcare Org, Fukuoka, Japan
[15] Japanese Red Cross Nagasaki Genbaku Hosp, Dept Gastroenterol, Nagasaki, Japan
[16] Oita Univ, Fac Med, Dept Med Oncol & Hematol, Oita, Japan
[17] Natl Hosp Org Shikoku Canc Ctr, Dept Gastrointestinal Med Oncol, Matsuyama, Ehime, Japan
[18] Univ Miyazaki Hosp, Dept Clin Oncol, Miyazaki, Japan
[19] Saiseikai Kumamoto Hosp, Div Integrat Med Oncol, Kumamoto, Japan
[20] NHO Kumamoto Med Ctr, Dept Med Oncol, Kumamoto, Japan
[21] Miyazaki Prefectural Miyazaki Hosp, Dept Chemotherapy, Miyazaki, Japan
[22] Kagoshima Kouseiren Hosp, Dept Gastroenterol, Kagoshima, Japan
[23] Izumi Gen Med Ctr, Dept Gastroenterol, Kagoshima, Japan
[24] Kagoshima City Hosp, Dept Gastroenterol, Kagoshima, Japan
[25] Asakura Med Assoc Hosp, Dept Gastroenterol, Asakura City, Japan
[26] Saiseikai Sendai Hosp, Dept Gastroenterol, Kagoshima, Japan
[27] Oncol Treatment Study Grp, Clin Hematol, 1-14-6 Muromi Gaoka,Nishi Ku, Fukuoka, Fukuoka 8190030, Japan
[28] Eikoh Hosp, 3-8-15 Befu Nishi, Shime, 8112232, Japan
[29] Fujikawa Hosp, Dept Internal Med, Saga, Japan
[30] Sasebo Kyosai Hosp, Dept Med Oncol, Sasebo, Japan