International guidelines
United Kingdom
Published by:Royal College of Obstetricians and Gynaecologists
Last published:2024
Published by:National Institute for Health and Care Excellence
Last published:2021
North America
Published by:American College of Obstetricians and Gynecologists
Last published:2018 (re-affirmed 2024)
Published by:Society of Obstetricians and Gynecologists of Canada
Last published:2016
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