We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEndogenous opioid blockade and impulsive responding in alcoholics and healthy controls.AuthorsMitchell JM; Tavares VC; Fields HL; D'Esposito M; Boettiger CAPublicationNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2007, Vol 32, Issue 2, p439ISSN0893-133xPublication typearticleDOI10.1038/sj.npp.1301226