No abstract available
MeSH terms
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Aged
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Aging / physiology
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Caudate Nucleus / diagnostic imaging
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Dihydroxyphenylalanine / analogs & derivatives
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Disease Progression
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Humans
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Longitudinal Studies
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Middle Aged
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Neostriatum / diagnostic imaging*
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Parkinson Disease / diagnostic imaging*
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Putamen / diagnostic imaging
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Tomography, Emission-Computed
Substances
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fluorodopa F 18
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Dihydroxyphenylalanine