title: Upper gastrointestinal haemorrhage in Oxford. A prospective study.
mesh_terms: D000328:Adult; D000368:Aged; D000700:Analgesics / Q000009:adverse effects; D000893:Anti-Inflammatory Agents / Q000009:adverse effects; D004739:England; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced / Q000453:epidemiology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology; D011446:Prospective Studies
chemical_list: D000700:Analgesics; D000893:Anti-Inflammatory Agents