Critical considerations in total communication and an environmental intervention model for the developmentally delayed.
D002648:Child; D006233:Persons with Disabilities; D006801:Humans; D007805:Language Development Disorders / Q000534:rehabilitation*; D007806:Language Disorders / Q000534:rehabilitation*; D007808:Language Therapy / Q000379:methods*; D008369:Manual Communication; D012813:Sign Language