1. Prevalence of autism spectrum disorders—Autism and developmental disabilities monitoring network, 14 sites, United States, 2002;ADDM‐CDC;MMWR Surveillance Summaries,2007
2. Prevalence of autism spectrum disorders—Autism and developmental disabilities monitoring network, six sites, United States, 2000;ADDM‐CDC;MMWR Surveillance Summaries,2007
3. Prevalence of autism spectrum disorders—Autism and developmental disabilities monitoring network, United States, 2006;ADDM‐CDC;MMWR Surveillance Summaries,2009
4. Prevalence of autism spectrum disorders—Autism and developmental disabilities monitoring network, 14 sites, United States, 2008;ADDM‐CDC;MMWR Surveillance Summaries,2012
5. Diagnostic and Statistical Manual of Mental Disorders