Sonography of occult cord prolapse.
D000328:Adult; D002585:Cesarean Section; D004630:Emergencies; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007744:Obstetric Labor Complications / Q000175:diagnosis*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011296:Prenatal Diagnosis; D011391:Prolapse; D014463:Ultrasonography; D014470:Umbilical Cord