title: Oral contraceptives and Chlamydia infections.
mesh_terms: D000328:Adult; D002690:Chlamydia Infections / Q000453:epidemiology* / Q000209:etiology; D002692:Chlamydia trachomatis; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D000292:Pelvic Inflammatory Disease / Q000453:epidemiology* / Q000209:etiology
chemical_list: D003276:Contraceptives, Oral