title: Nonsteroidal anti-inflammatory drugs and peptic ulcer.
authors.forename: A T
authors.initials: AT
authors.lastname: Masi
mesh_terms: D000368:Aged; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D006801:Humans; D010437:Peptic Ulcer / Q000150:complications*; D010438:Peptic Ulcer Hemorrhage; D012107:Research Design
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal