Mu opioid receptor A118G polymorphism in association with striatal opioid neuropeptide gene expression in heroin abusers.
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Proc Natl Acad Sci U S A. 2006 May 16;103(20):7883-8. doi: 10.1073/pnas.0600871103. Epub 2006 May 8.
Proc Natl Acad Sci U S A. 2006.
PMID: 16682632
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