No abstract available
MeSH terms
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Aged
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Brain / pathology
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Cognition Disorders / diagnosis*
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Cognition Disorders / pathology
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Dementia / diagnosis
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Female
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Humans
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Magnetic Resonance Spectroscopy
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Male
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Neuropsychological Tests
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Neurotransmitter Agents / metabolism
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Parkinson Disease / diagnosis*
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Parkinson Disease / pathology
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Research
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Tomography, X-Ray Computed