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The Association of Episiotomy with Obstetric Anal Sphincter Injury–A Population Based Matched Cohort Study
- Sari Räisänen,
- Tuomas Selander,
- Rufus Cartwright,
- Mika Gissler,
- Michael R. Kramer,
- Katariina Laine,
- Seppo Heinonen
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- Published: September 9, 2014
- https://doi.org/10.1371/journal.pone.0107053