title: Discriminative stimulus effects of narcotics: evidence for multiple receptor-mediated actions.
mesh_terms: D000818:Animals; D010856:Columbidae; D003496:Cyclazocine / Q000494:pharmacology; D004192:Discrimination, Psychological; D008253:Macaca mulatta; D009020:Morphine / Q000494:pharmacology; D009269:Nalorphine / Q000494:pharmacology; D009294:Narcotics / Q000494:pharmacology*; D051381:Rats; D011957:Receptors, Opioid / Q000502:physiology*; D012453:Saimiri; D013045:Species Specificity; D013329:Structure-Activity Relationship
chemical_list: D009294:Narcotics; D011957:Receptors, Opioid; D009020:Morphine; D003496:Cyclazocine; D009269:Nalorphine