Towards a theory of use for signed English: from birth through adulthood.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003638:Deafness / Q000534:rehabilitation*; D004519:Education, Special; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008369:Manual Communication; D012660:Semantics; D012813:Sign Language