title: Predictive factors for cognitive deterioration and dementia in Parkinson's disease.
mesh_terms: D003072:Cognition Disorders / Q000175:diagnosis*; D003704:Dementia / Q000175:diagnosis*; D004569:Electroencephalography; D006719:Homovanillic Acid / Q000134:cerebrospinal fluid; D006801:Humans; D007980:Levodopa / Q000627:therapeutic use; D010300:Parkinson Disease / Q000175:diagnosis* / Q000188:drug therapy; D011379:Prognosis
chemical_list: D007980:Levodopa; D006719:Homovanillic Acid