Aspirin and gastrointestinal bleeding.
D001241:Aspirin / Q000009:adverse effects*; D001780:Blood Coagulation Tests; D004247:DNA; D005753:Gastric Mucosa / Q000473:pathology; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D005773:Gastroscopy; D006801:Humans
D004247:DNA; D001241:Aspirin