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2. Naloxone reversal of analgesia produced by brain stimulation in the human;Adams;Pain,1976
3. Comparaison chez le Rat entre l'analgésie induite par stimulation de la substance grise périaqueductale et l'analgésie morphinique;Akil;C.R. Acad. Sci. Paris,1972
4. Antagonism of stimulation-produced analgesia by naloxone, a narcotic antagonist;Akil;Science,1976
5. Stress-induced increase in endogenous opiate peptides: concurrent analgesia and its partial reversal by naloxone;Akil,1976