title: Indicators of success in learning a manual communication mode.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002674:Child, Institutionalized; D004495:Education of Persons with Intellectual Disabilities; D006801:Humans; D008297:Male; D008369:Manual Communication; D011379:Prognosis; D011578:Psycholinguistics; D012813:Sign Language; D013997:Time Factors