Kielland or Caesar?
D002585:Cesarean Section; D005113:Extraction, Obstetrical / Q000295:instrumentation*; D005260:Female; D005316:Fetal Distress / Q000601:surgery; D006801:Humans; D007744:Obstetric Labor Complications / Q000601:surgery; D009772:Obstetrical Forceps / Q000009:adverse effects; D011247:Pregnancy; D013997:Time Factors