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Parkinson's Disease
Alzheimer's Disease
Cognition Disorders
Atrophy
Dementia
Brain
Magnetic Resonance Imaging
Risk Factors
Analysis of Variance
Prospective Studies
Neuropsychological Tests
Age of Onset
Longitudinal Studies
Time Factors
Apolipoproteins E
Levodopa
Apolipoprotein E4
Psychomotor Performance
Genotype
Disease Progression
Co-Publications
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