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Smith, Christopher J.; Lang, Colleen M.; Kryzak, Lauren; Reichenberg, Abraham; Hollander, Eric; Silverman, Jeremy M. – Journal of Child Psychology and Psychiatry, 2009
Background: Clinical heterogeneity of autism likely hinders efforts to find genes associated with this complex psychiatric disorder. Some studies have produced promising results by restricting the sample according to the expression of specific familial factors or components of autism. Previous factor analyses of the restricted, repetitive…
Descriptors: Personality Traits, Siblings, Autism, Identification