No abstract available
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Aged
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Basal Ganglia / analysis
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Brain Chemistry*
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Dopamine / analysis*
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Enkephalin, Methionine / analysis*
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Frontal Lobe / analysis
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Hippocampus / analysis
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Humans
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Parkinson Disease / metabolism*
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Substantia Nigra / analysis
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Tegmentum Mesencephali / analysis
Substances
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Enkephalin, Methionine
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Dopamine