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Parkinson's Disease
Alzheimer's Disease
Cognition Disorders
Hallucinations
Tourette's Syndrome
Longitudinal Studies
Neuropsychological Tests
Severity of Illness Index
Cohort Studies
Risk Factors
Psychiatric Status Rating Scales
Antiparkinson Agents
Levodopa
Disease Progression
Movement
Lewy Bodies
Brain
Neurologic Examination
Double-Blind Method
Disability Evaluation
Co-Publications
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