title: Language without communication: a case study.
mesh_terms: D002675:Child, Preschool; D003142:Communication; D003210:Concept Formation; D006801:Humans; D007804:Language Development; D007806:Language Disorders / Q000175:diagnosis*; D008297:Male; D012660:Semantics; D013067:Speech Perception; D013068:Speech Production Measurement