title: Risk of gastrointestinal effects with COX-2 inhibitors and NSAIDs: COX-2 inhibitors were thought of as a safe option.
authors.forename: Michael R
authors.initials: MR
authors.lastname: Lewis
authors.forename: Diana
authors.initials: D
authors.lastname: Kay
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D016861:Cyclooxygenase Inhibitors / Q000009:adverse effects*; D006471:Gastrointestinal Hemorrhage / Q000139:chemically induced*; D006801:Humans; D012307:Risk Factors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D016861:Cyclooxygenase Inhibitors