International guidelines
North America
Published by:Centers for Disease Control and Prevention
Last published:2021
Published by:The Canadian Paediatric Society
Last published:2019
Published by:American College of Occupational and Environmental Medicine
Last published:2016
Published by:The American Academy of Pediatrics
Last published:2016
Published by:Association of Occupational and Environmental Clinics
Last published:2013
Published by:American College of Obstetricians and Gynecologists
Last published:2012 (reaffirmed 2023)
Published by:Centers for Disease Control and Prevention
Last published:2002
Rest of the world
Published by:World Health Organization
Last published:2021
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