Pervasive Developmental Disorders in Preschool Children
نویسندگان
چکیده
منابع مشابه
Pervasive developmental disorders in preschool children.
CONTEXT Prevalence rates of autism-spectrum disorders are uncertain, and speculation that their incidence is increasing continues to cause concern. OBJECTIVE To estimate the prevalence of pervasive developmental disorders (PDDs) in a geographically defined population of preschool children. DESIGN, SETTING, AND PARTICIPANTS Survey conducted July 1998 to June 1999 in Staffordshire, England. T...
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ژورنال
عنوان ژورنال: JAMA
سال: 2001
ISSN: 0098-7484
DOI: 10.1001/jama.285.24.3093