[1] Kagoshima Univ, Digest & Lifestyle Dis, Grad Sch Med & Dent Sci, Kagoshima, Japan
[2] Yamaguchi Univ, Dept Biostat, Grad Sch Med, Yamaguchi, Japan
[3] Minato Med Clin, Dept Internal Med, Fukuoka, Japan
[4] Kagoshima City Hosp, Dept Med Oncol, Kagoshima, Japan
[5] Japan Community Healthcare Org Kyushu Hosp, Dept Hematol Oncol, Fukuoka, Japan
[6] Saga Ken Med Ctr Koseikan, Dept Hepatobiliary & Pancreatol, Saga, Japan
[7] Saiseikai Kumamoto Hosp, Div Integrat Med Oncol, Kumamoto, Fukuoka, Japan
[8] Japanese Red Cross Nagasaki Genbaku Hosp, Dept Gastroenterol, Nagasaki, Japan
[9] Asakura Med Assoc Hosp, Dept Gastroenterol, Fukuoka, Japan
[10] Miyazaki Prefectural Miyazaki Hosp, Dept Chemotherapy, Miyazaki, Japan
[11] Oita Univ, Dept Med Oncol & Hematol, Fac Med, Oita, Japan
[12] Imamura Gen Hosp, Dept Gastroenterol, Kagoshima, Japan
[13] Natl Hosp Org Kumamoto Med Ctr, Dept Med Oncol, Kumamoto, Japan
[14] Natl Hosp Org Saga Hosp, Dept Internal Med, Saga, Japan
[15] Japanese Red Cross Kumamoto Hosp, Dept Hematol & Oncol, Kumamoto, Japan
[16] Saiseikai Sendai Hosp, Dept Gastroenterol, Kagoshima, Japan
[17] Clin Hematol Oncol Treatment Study Grp, Fukuoka, Japan
[18] Fujikawa Hosp, Dept Internal Med, Saga, Japan
[19] Sasebo Kyosai Hosp, Dept Med Oncol, Nagasaki, Japan