title: Risk factors for third degree perineal ruptures during delivery.
authors.forename: J C R
authors.initials: JC
authors.lastname: Hardwick
mesh_terms: D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications / Q000209:etiology*; D010502:Perineum / Q000293:injuries*; D011247:Pregnancy; D012307:Risk Factors; D012421:Rupture