title: Comparative study on the use of the IUD in different socioeconomic groups.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008796:Metrorrhagia / Q000209:etiology; D010808:Physical Examination; D012924:Social Conditions; D014591:Uterine Diseases