title: Intellectual impairment in Parkinson's syndrome.
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000209:etiology; D000368:Aged; D003072:Cognition Disorders / Q000209:etiology*; D004295:Dihydroxyphenylalanine / Q000627:therapeutic use; D005260:Female; D005917:Globus Pallidus / Q000601:surgery; D006801:Humans; D007361:Intelligence Tests; D008297:Male; D008875:Middle Aged; D010276:Parasympatholytics / Q000627:therapeutic use; D010300:Parkinson Disease / Q000150:complications* / Q000188:drug therapy / Q000601:surgery; D013788:Thalamus / Q000601:surgery
chemical_list: D010276:Parasympatholytics; D004295:Dihydroxyphenylalanine