International guidelines
Rest of the world
Published by:American Academy of Otolaryngology-Head and Neck Surgery Foundation
Last published:2022
Published by:American Academy of Otolaryngology-Head and Neck Surgery Foundation; American Academy of Pediatrics; American Academy of Family Physicians
Last published:2016
Published by:National Institute for Health and Care Excellence
Last published:2008
Published by:International Federation of Oto-rhino-laryngological Societies
Last published:
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