title: [Study on sphincter rupture].
mesh_terms: D001003:Anal Canal / Q000293:injuries* / Q000601:surgery; D005260:Female; D006801:Humans; D007744:Obstetric Labor Complications / Q000209:etiology*; D010502:Perineum / Q000293:injuries* / Q000601:surgery; D011247:Pregnancy
vernacular_title: Undersökning om sfincterruptur.