title: A study of naproxen sodium and mefenamic acid in primary dysmenorrhoea.
mesh_terms: D000293:Adolescent; D000328:Adult; D004412:Dysmenorrhea / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008528:Mefenamic Acid / Q000627:therapeutic use*; D009288:Naproxen / Q000627:therapeutic use*
chemical_list: D008528:Mefenamic Acid; D009288:Naproxen