title: Masked depression in chronic schizophrenia.
mesh_terms: D000328:Adult; D002908:Chronic Disease; D003861:Depersonalization; D003863:Depression / Q000209:etiology*; D006801:Humans; D008297:Male; D012559:Schizophrenia / Q000150:complications* / Q000628:therapy; D012649:Self Concept