title: Research implications for communication deficiencies.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003638:Deafness / Q000628:therapy*; D004495:Education of Persons with Intellectual Disabilities; D005868:Gestures; D006801:Humans; D007360:Intelligence; D007804:Language Development; D019736:Prostheses and Implants; D012106:Research; D012813:Sign Language; D013064:Speech Disorders / Q000628:therapy*