International guidelines
United Kingdom
Published by:Royal College of Obstetricians & Gynaecologists
Last published:2020
North America
Published by:Society of Gynecologic Oncology
Last published:2021
Published by:American College of Radiology (ACR), the American Institute of Ultrasound in Medicine (AIUM), the American College of Obstetricians and Gynecologists (ACOG), the Society for Maternal Fetal Medicine (SMFM), and the Society of Radiologists in Ultrasound (SRU)
Last published:2018
Published by:American College of Obstetricians and Gynecologists
Last published:2016 (re-affirmed 2022)
Rest of the world
Published by:International Federation of Gynecology and Obstetrics
Last published:2021
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