Malpresentations.
D001946:Breech Presentation; D002585:Cesarean Section; D005260:Female; D005316:Fetal Distress / Q000209:etiology; D006801:Humans; D007746:Labor Presentation; D008423:Maternal Age; D007744:Obstetric Labor Complications / Q000628:therapy*; D010298:Parity; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012306:Risk