title: G-I bleed after angiography.
mesh_terms: D000792:Angiography / Q000009:adverse effects*; D003287:Contrast Media / Q000009:adverse effects; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D003287:Contrast Media