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  • Sørbye, I.K.; Bains, Sukhjeet; Vangen, Siri; Sundby, Johanne Sommerschild; Lindskog, Benedikte V; Owe, Katrine Mari (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Objective To estimate the association between maternal origin and obstetric anal sphincter injury (OASI), and assess if associations differed by length of residence. Design Population-based cohort study. Setting The ...