title: Sonographic visualization of coexisting gestation sac and I.U.D. in the uterus and a consideration of a causative factor of accidental pregnancy.
mesh_terms: D003560:Cysts / Q000175:diagnosis; D005260:Female; D005333:Fetus; D006801:Humans; D007434:Intrauterine Devices; D007889:Leiomyoma / Q000175:diagnosis; D010063:Ovum; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000175:diagnosis; D011275:Pregnancy, Unwanted; D014463:Ultrasonography; D014472:Umbilicus; D001743:Urinary Bladder; D014591:Uterine Diseases / Q000175:diagnosis; D014594:Uterine Neoplasms / Q000175:diagnosis; D014599:Uterus