title: Letter: Aspirin, heparin and hemorrhage.
mesh_terms: D001241:Aspirin / Q000009:adverse effects*; D001792:Blood Platelets / Q000187:drug effects; D004347:Drug Interactions; D006470:Hemorrhage / Q000139:chemically induced*; D006493:Heparin / Q000009:adverse effects*; D006801:Humans
chemical_list: D006493:Heparin; D001241:Aspirin