A group of disorders characterized by impaired communication and social interaction that includes autism, Rett's and Asperger's syndromes are

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PDDs (Pervasive Developmental Disorders) are a group of disorders that include Autism, Rett's, and Asperger's syndromes. ODDs (Oppositional Defiant Disorders) and BDs (Bipolar Disorders) are not relevant to this group of disorders, and ADHDs (Attention Deficit Hyperactivity Disorders) may have some overlapping symptoms with PDDs but are not part of this specific diagnostic category.

A Group of Disorders Characterized by Impaired Communication and Social