title: Small-dose intravenous heroin facilitates hypothalamic self-stimulation without response suppression in rats.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D004558:Electric Stimulation; D003932:Heroin / Q000008:administration & dosage / Q000494:pharmacology*; D007031:Hypothalamus / Q000502:physiology*; D007700:Kinetics; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D012653:Self Stimulation / Q000187:drug effects*
chemical_list: D003932:Heroin