Prolapse of the umbilical cord.
D001238:Asphyxia Neonatorum; D002585:Cesarean Section; D036861:Delivery, Obstetric; D005113:Extraction, Obstetrical; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007746:Labor Presentation; D011247:Pregnancy; D011248:Pregnancy Complications / Q000628:therapy*; D014470:Umbilical Cord / Q000002:abnormalities*