We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of the kappa opioid agonist U50,488 and the kappa opioid antagonist nor-binaltorphimine on choice between cocaine and food in rhesus monkeys.AuthorsNegus SSPublicationPsychopharmacology, 2004, Vol 176, Issue 2, p204ISSN0033-3158Publication typearticleDOI10.1007/s00213-004-1878-7