title: Development of vision, hearing and communication.
mesh_terms: D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003467:Cultural Deprivation; D006233:Persons with Disabilities; D006309:Hearing; D006320:Hearing Tests; D006801:Humans; D007804:Language Development; D014787:Vision Tests; D014785:Vision, Ocular