Use of ultrasound in diagnosing disease during pregnancy.
D000022:Abortion, Spontaneous / Q000175:diagnosis; D000037:Abruptio Placentae / Q000175:diagnosis; D000757:Anencephaly / Q000175:diagnosis; D004899:Erythroblastosis, Fetal / Q000175:diagnosis; D005260:Female; D006801:Humans; D006828:Hydatidiform Mole / Q000175:diagnosis; D006849:Hydrocephalus / Q000175:diagnosis; D010923:Placenta Previa / Q000175:diagnosis; D006831:Polyhydramnios / Q000175:diagnosis; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D011271:Pregnancy, Ectopic / Q000175:diagnosis; D011296:Prenatal Diagnosis; D014463:Ultrasonography