Ultrasound in management of clinically diagnosed threatened abortion.
D000030:Abortion, Missed / Q000175:diagnosis; D000033:Abortion, Threatened / Q000175:diagnosis*; D003951:Diagnostic Errors; D005260:Female; D005313:Fetal Death / Q000175:diagnosis; D006801:Humans; D011247:Pregnancy; D014463:Ultrasonography; D014592:Uterine Hemorrhage / Q000175:diagnosis