title: A study of the Ypsilon IUD in Brazil.
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007433:Intrauterine Device Expulsion; D007434:Intrauterine Devices / Q000009:adverse effects; D011247:Pregnancy