International guidelines
United Kingdom
Published by:National Institute for Health and Care Excellence
Last published:2021
Europe
Published by:European Federation of Neurological Societies
Last published:2011
Published by:European Federation of Neurological Societies
Last published:2010
North America
Published by:American College of Obstetricians and Gynecologists
Last published:2022 (reaffirmed 2024)
Published by:American College of Radiology
Last published:2022
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