Differential diagnosis of the early pregnancy failure by ultrasound.
D000030:Abortion, Missed / Q000175:diagnosis; D000022:Abortion, Spontaneous / Q000175:diagnosis*; D000033:Abortion, Threatened / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006828:Hydatidiform Mole / Q000175:diagnosis; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011271:Pregnancy, Ectopic / Q000175:diagnosis; D014463:Ultrasonography; D014594:Uterine Neoplasms / Q000175:diagnosis