No abstract available
MeSH terms
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Administration, Oral
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Adult
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Biotransformation
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Carbon Isotopes
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Chromatography, Gas
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Dealkylation
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Humans
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Hydroxylation
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Male
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Mass Spectrometry
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Methadone / administration & dosage
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Methadone / therapeutic use
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Methadone / urine*
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Oxidation-Reduction
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Pyrrolidines / urine
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Substance-Related Disorders / drug therapy*
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Substance-Related Disorders / urine
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Valerates / urine
Substances
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Carbon Isotopes
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Pyrrolidines
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Valerates
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Methadone