TY - JOUR AU - Watabe, H; Yamaji, Y; Okamoto, M TI - Risk assessment for delayed hemorrhagic complication of colonic polypectomy: polyp-related factors and patient-related factors JO - Gastrointest Endosc VL - 64 PY - 2006 DO - 10.1016/j.gie.2006.02.054 SP - 73 EP - 78 N1 - et al. ER -