[1] Med Res Inst Kitano Hosp, Dept Hematol, PIIF Tazuke Kofukai, Osaka, Japan
[2] Kyoto Univ, Dept Hematol, Kyoto, Japan
[3] Kitano Hosp, Med Res Inst, Dept Gastroenterol, PIIF Tazuke Kofukai, Osaka, Japan
[4] Kyoto Univ, Grad Sch Med, Ctr Canc Immunotherapy & Immunobiol, Div Canc Immunotherapy, Kyoto, Japan