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Pharmacology, Biochemistry, and Behavior|November 1, 1977
Etorphine and shuttle-box self-stimulation in the ratJ H Baltzer, R A Levitt, J E Furby
Psychopharmacology|November 15, 1977
Morphine and shuttle-box self-stimulation in the rat: a model for euphoriaR A Levitt, J H Baltzer, T M Evers, et al.
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