title: The use of IUD in nulliparae. Clinical experiences.
mesh_terms: D000293:Adolescent; D000328:Adult; D003278:Contraceptives, Oral, Hormonal; D005260:Female; D006801:Humans; D007435:Intrauterine Devices, Copper; D010298:Parity
chemical_list: D003278:Contraceptives, Oral, Hormonal