1. Behavioral phenotype of individuals with Down Syndrome;Chapman;Mental Retardation and Developmental Disabilities Research Reviews,2000
2. Language skills of children and adolescents with Down Syndrome. II. Production deficits, Journal of Speech;Chapman;Language and Hearing Research,1998
3. The nature of speech disorder in children with Down Syndrome;Dodd;International Journal of Intellectual Disability,2001
4. Fowler, A. (1988). Determinants of rate of language growth in children with Down Syndrome. In: Nadel, L. (Ed.), The psychobiology of Down Syndrome. Cambridge, MA: MIT Press.