title: Referent communication in chronic schizophrenia.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003118:Color Perception; D003142:Communication; D006801:Humans; D008297:Male; D008875:Middle Aged; D012563:Schizophrenia, Paranoid / Q000150:complications; D012564:Schizophrenic Language; D012565:Schizophrenic Psychology; D014705:Verbal Behavior