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The cannabis gateway hypothesis purports that early exposure to cannabis is a risk factor for subsequent use of other addictive drugs, e.g., psychostimulants. Neurobiological sensitization, consistent with a gateway hypothesis, was currently studied in regard to amphetamine response. Rats were exposed to the cannabinoid receptor agonist WIN 55,212-2 [(R)-(+)-[2,3-dihydro-5-methyl-3-(4-morpholinylmethyl)pyrrolo[1,2,3-de]-1,4-benzoxazin-6-yl]-1-naphthalenylmethanone]...
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