title: Intellectual dysfunction and dementia in Parkinson disease.
mesh_terms: D000368:Aged; D001284:Atrophy; D001479:Basal Ganglia / Q000473:pathology / Q000502:physiology; D002540:Cerebral Cortex / Q000473:pathology; D003704:Dementia / Q000150:complications* / Q000209:etiology; D006801:Humans; D007360:Intelligence; D007980:Levodopa / Q000627:therapeutic use; D008875:Middle Aged; D010300:Parkinson Disease / Q000150:complications* / Q000175:diagnosis / Q000523:psychology; D011581:Psychological Tests
chemical_list: D007980:Levodopa