title: Incidence of NSAID-related, severe gastrointestinal bleeding.
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D001241:Aspirin / Q000009:adverse effects; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D006801:Humans; D011446:Prospective Studies
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D001241:Aspirin