International guidelines
United Kingdom
Published by:National Institute for Health and Care Excellence
Last published:2019 (updated 2023)
Published by:British Thyroid Association
Last published:2006
North America
Published by:American College of Radiology
Last published:2022
Published by:American College of Obstetricians and Gynecologists
Last published:2020 (reaffirmed 2023)
Published by:British Columbia Ministry of Health
Last published:2018
Published by:American Thyroid Association
Last published:2017
Published by:American Thyroid Association
Last published:2016
Rest of the world
Published by:American Association of Clinical Endocrinologists, American College of Endocrinology, and Associazione Medici Endocrinologi
Last published:2016
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