title: Intellectual impairment in Parkinson's disease.
mesh_terms: D001479:Basal Ganglia / Q000473:pathology; D003072:Cognition Disorders / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D007360:Intelligence; D009483:Neuropsychological Tests; D010300:Parkinson Disease / Q000175:diagnosis* / Q000473:pathology; D011597:Psychomotor Performance