No abstract available
MeSH terms
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Amino Acids / urine*
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Chemistry, Clinical / standards
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Chromatography, Ion Exchange
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Humans
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Indicators and Reagents
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Ion Exchange Resins
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Lead Poisoning / epidemiology*
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Levulinic Acids / urine*
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Mass Screening
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Methods
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Occupational Diseases / epidemiology
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Spectrophotometry
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Time Factors
Substances
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Amino Acids
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Indicators and Reagents
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Ion Exchange Resins
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Levulinic Acids