title: Effects of ethanol injections on morphine consumption in morphine-preferring rats.
mesh_terms: D000818:Animals; D004327:Drinking Behavior / Q000187:drug effects; D000431:Ethanol / Q000494:pharmacology*; D008297:Male; D009020:Morphine; D051381:Rats; D013649:Taste; D013997:Time Factors
chemical_list: D000431:Ethanol; D009020:Morphine