title: Non-steroidal anti-inflammatory drugs and perforated peptic ulcer.
mesh_terms: D000367:Age Factors; D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D011307:Drug Prescriptions; D005260:Female; D006801:Humans; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000139:chemically induced* / Q000453:epidemiology; D006113:United Kingdom
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal