Bozarth MA, Murray A, Wise RA (Aug 1989). “Influence of housing conditions on the acquisition of intravenous heroin and cocaine self-administration in rats”. Pharmacol Biochem Behav33 (4): 903–7. doi:10.1016/0091-3057(89)90490-5. PMID2616610.
Bozarth MA, Murray A, Wise RA (Aug 1989). “Influence of housing conditions on the acquisition of intravenous heroin and cocaine self-administration in rats”. Pharmacol Biochem Behav33 (4): 903–7. doi:10.1016/0091-3057(89)90490-5. PMID2616610.