The Synergistic Effects of Combining Cocaine and Heroin (“Speedball”) Using a Progressive-Ratio Schedule of Drug Reinforcement
Open Access
- 1 November 1998
- journal article
- Published by Elsevier in Pharmacology Biochemistry and Behavior
- Vol. 61 (3) , 297-302
- https://doi.org/10.1016/s0091-3057(98)00098-7
Abstract
No abstract availableKeywords
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