Language and the more severely retarded: a review.
D000293:Adolescent; D000328:Adult; D001291:Attitude of Health Personnel; D002648:Child; D002675:Child, Preschool; D004495:Education of Persons with Intellectual Disabilities; D006801:Humans; D008607:Intellectual Disability; D007802:Language; D007804:Language Development; D007806:Language Disorders / Q000628:therapy; D011578:Psycholinguistics