title: Changes in the primary diagnosis of students with intellectual or developmental disabilities ages 6 to 21 receiving special education services 1999 to 2008.
authors.forename: Sheryl A
authors.initials: SA
authors.lastname: Larson
authors.forename: K Charlie
authors.initials: KC
authors.lastname: Lakin
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D002658:Developmental Disabilities / Q000175:diagnosis* / Q000453:epidemiology; D004185:Disability Evaluation; D004519:Education, Special / Q000706:statistics & numerical data / Q000639:trends*; D004608:Eligibility Determination / Q000639:trends; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis* / Q000453:epidemiology; D008297:Male; D014481:United States; D055815:Young Adult