Routine prophylactic episiotomy. Is it always necessary.
D001724:Birth Weight; D004841:Episiotomy; D005260:Female; D006300:Health Services Misuse; D006700:Home Childbirth; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D012189:Retrospective Studies; D013223:Statistics as Topic; D014481:United States