>>/31424/ PDD is a group of disorders that include autism. PDD is to Autism as Cat is to Mittens. There are many different cats, and Mittens is one of them. There are many different Pervasive Developmental Disorders, and Autism is one of them.
>>/31424/ PDD is a group of disorders that include autism. PDD is to Autism as Cat is to Mittens. There are many different cats, and Mittens is one of them. There are many different Pervasive Developmental Disorders, and Autism is one of them.