Breech presentation.
D001034:Apgar Score; D001946:Breech Presentation; D002585:Cesarean Section; D000013:Congenital Abnormalities / Q000453:epidemiology; D036861:Delivery, Obstetric; D005260:Female; D005313:Fetal Death; D005317:Fetal Growth Retardation; D005500:Follow-Up Studies; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007234:Infant, Premature; D007746:Labor Presentation; D007743:Labor, Obstetric; D011247:Pregnancy; D011248:Pregnancy Complications