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2. Diagnostic and Statistical Manual of Mental Disorders;American Psychiatric Association,1980
3. Diagnostic and Statistical Manual of Mental Disorders;American Psychiatric Association,1987
4. Are autistic children “Behaviorists”? An examination of their mental-physical and appearance-reality distinctions;Baron-Cohen;J. Autism Dev. Disord.,1989
5. Bayley Scales of Infant Development;Bayley,1969