No abstract available
MeSH terms
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Amino Acid Substitution
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Exons / genetics
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Genotype
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Heroin Dependence / epidemiology
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Heroin Dependence / genetics*
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Humans
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Nuclear Family
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Polymorphism, Single Nucleotide*
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Receptors, Opioid, mu / genetics*
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Risk Factors
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Sweden / epidemiology