Early manual communication and deaf children's achievement.
D000124:Achievement; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003142:Communication; D003638:Deafness; D004519:Education, Special; D004521:Educational Measurement; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011581:Psychological Tests; D013060:Speech; D013997:Time Factors; D014956:Writing