Difficulties in breech delivery.
D001946:Breech Presentation; D002585:Cesarean Section; D036861:Delivery, Obstetric / Q000379:methods; D005260:Female; D005313:Fetal Death / Q000517:prevention & control; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000453:epidemiology; D007746:Labor Presentation; D008318:Malpractice; D011247:Pregnancy; D012306:Risk