Duration of labor and the risk of severe postpartum hemorrhage: A case-control study

• Lill Trine Nyfløt ,

  * E-mail: l.t.nyflot@medisin.uio.no

  Affiliations Division of Gynecology and Obstetrics, Oslo University Hospital, Oslo, Norway, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway

  http://orcid.org/0000-0001-8979-1563

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• Babill Stray-Pedersen,

  Affiliation Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway

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• Lisa Forsén,

  Affiliations Norwegian Institute of Public Health, Oslo, Norway, Norwegian National Advisory Unit on Women’s Health, Oslo University Hospital, Oslo, Norway

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• Siri Vangen

  Affiliations Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway, Norwegian National Advisory Unit on Women’s Health, Oslo University Hospital, Oslo, Norway

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