Pilot perceptual and physiological investigation of hypernasality in Down's syndrome adults.
D000328:Adult; D004314:Down Syndrome / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D009666:Nose; D014681:Velopharyngeal Insufficiency / Q000150:complications*; D014832:Voice Disorders / Q000209:etiology*