title: Double blind trial of mefenamic acid, aspirin and placebo in patients with post-operative pain.
mesh_terms: D000293:Adolescent; D000328:Adult; D001241:Aspirin / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D008297:Male; D008528:Mefenamic Acid / Q000627:therapeutic use*; D008875:Middle Aged; D010149:Postoperative Pain / Q000188:drug therapy*; D010919:Placebos
chemical_list: D010919:Placebos; D008528:Mefenamic Acid; D001241:Aspirin