title: Comprehension and imitation of sentences by Down's syndrome children as a function of transformational complexity.
mesh_terms: D000293:Adolescent; D002648:Child; D004314:Down Syndrome; D004495:Education of Persons with Intellectual Disabilities; D005260:Female; D006801:Humans; D007100:Imitative Behavior; D007804:Language Development; D008297:Male; D014706:Verbal Learning