1. U.S. Department of Commerce, Economics and Statistics Administration, U.S. Census Bureau. Census 2000 brief. Disability status 2000, March 2003.
2. California Department of Developmental Services. Department of Developmental Services fact book, sixth edition, October 2003.
3. California Department of Developmental Services. Autistic spectrum disorders: Changes in Caseload: An Update 1999-2002, April 2003.
4. Prevalence of Autism in a US Metropolitan Area
5. U.S. Department of Health and Human Services. Oral Health in America: A Report of the Surgeon General. Rockville, MD: U.S. Department of Health and Human Services, National Institute of Dental and Craniofacial Research, National Institutes of Health, 2000.