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Autism Definition
"Autism" means a developmental disability significantly affecting verbal and non-verbal communication and social interaction, generally evident before age three, that adversely affects educational performance.
http://www.medicine.uiowa.edu
Autism Definition
Autism is defined in the Diagnostic and Statistical manual of Mental Disorders (DSM-IV). http://www.autism.net.au
Autism Definition
Autism definition information.
http://www.napcse.org