title: Warfarin-induced rectal bleeding as clue to colon cancer.
mesh_terms: D000368:Aged; D003110:Colonic Neoplasms / Q000175:diagnosis*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D006801:Humans; D008875:Middle Aged; D012007:Rectum; D014859:Warfarin / Q000009:adverse effects*
chemical_list: D014859:Warfarin