No abstract available
MeSH terms
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Biotransformation
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Chromatography, Liquid
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Drug Combinations
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Drug Compounding
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Drug Monitoring / methods*
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Drug Prescriptions
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Humans
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Morphine / urine*
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Naltrexone / analogs & derivatives*
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Naltrexone / urine
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Narcotic Antagonists / urine*
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Reproducibility of Results
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Retrospective Studies
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Tandem Mass Spectrometry
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Urinalysis
Substances
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Drug Combinations
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Narcotic Antagonists
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morphine, naltrexone combination
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6 beta-hydroxynaltrexone
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Naltrexone
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Morphine