title: Endoscopic evaluation of the effects of aspirin, buffered aspirin, and enteric-coated aspirin on gastric and duodenal mucosa.
mesh_terms: D000328:Adult; D001241:Aspirin / Q000008:administration & dosage* / Q000009:adverse effects*; D002021:Buffers; D004386:Duodenum / Q000187:drug effects* / Q000473:pathology; D004724:Endoscopy; D005753:Gastric Mucosa / Q000187:drug effects* / Q000473:pathology; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced / Q000473:pathology; D005773:Gastroscopy; D006801:Humans; D007413:Intestinal Mucosa / Q000187:drug effects* / Q000473:pathology; D008875:Middle Aged; D010919:Placebos; D013608:Tablets, Enteric-Coated
chemical_list: D002021:Buffers; D010919:Placebos; D013608:Tablets, Enteric-Coated; D001241:Aspirin