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Autism

This article is about the classic autistic disorder. For other conditions sometimes called "autism", see Autism spectrum. For the journal, see Autism (journal).

Autism is a neurodevelopmental disorder characterized by impaired social interaction, impaired verbal and non-verbal communication, and restricted and repetitive behavior. Parents usually notice signs in the first two years of their child's life.[6] These signs often develop gradually, though some children with autism reach their developmental milestones at a normal pace and then regress.[7] The diagnostic criteria require that symptoms become apparent in early childhood, typically before age three.[8]

Autism

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