No abstract available
MeSH terms
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Adult
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Animals
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Bile
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Bile Pigments / analysis
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Bile Pigments / biosynthesis*
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Carbon Isotopes
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Ducks
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Erythrocytes / metabolism
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Feces / analysis
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Humans
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Intestine, Small / physiology*
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Levulinic Acids / metabolism
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Liver / metabolism*
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Liver Circulation
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Male
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Porphyrins / analysis
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Porphyrins / metabolism*
Substances
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Bile Pigments
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Carbon Isotopes
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Levulinic Acids
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Porphyrins