title: Post-training intraperitoneal administration of leu-enkephalin and beta-endorphin causes retrograde amnesia for two different tasks in rats.
mesh_terms: D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects; D004723:Endorphins / Q000494:pharmacology*; D004745:Enkephalins / Q000494:pharmacology; D006185:Habituation, Psychophysiologic / Q000187:drug effects; D007274:Injections, Intraperitoneal; D008297:Male; D008568:Memory / Q000187:drug effects*; D011939:Mental Recall / Q000187:drug effects*; D051381:Rats
chemical_list: D004723:Endorphins; D004745:Enkephalins