Vorperian, PhD, H. K. Speech Impairment in Down Syndrome: A Review.
Kent RD, Vorperian HK. (2013) Speech impairment in Down syndrome: a review. Journal of Speech Language and Hearing Research. 56(1):178-210.
Kent RD, Vorperian HK. (2013) Speech impairment in Down syndrome: a review. Journal of Speech Language and Hearing Research. 56(1):178-210.