title: Two intrauterine contraceptive devices.
authors.affiliation: Frimley Park Hospital, Camberley, Surrey, UK.
authors.forename: M
authors.initials: M
authors.lastname: Moustafa
mesh_terms: D000032:Abortion, Therapeutic; D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007435:Intrauterine Devices, Copper; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D049168:Pregnancy, Unplanned; D016216:Ultrasonography, Prenatal