Breech delivery.
D000818:Animals; D001946:Breech Presentation; D002585:Cesarean Section; D036861:Delivery, Obstetric / Q000379:methods* / Q000401:mortality; D005260:Female; D005313:Fetal Death; D005311:Fetal Hypoxia / Q000209:etiology; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007746:Labor Presentation; D007743:Labor, Obstetric; D011247:Pregnancy