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Authors: MAREK GJ HEFFNER TG RICHARDS JB SHAUGHNESSY RA LI AA SEIDEN LS
Citation: Gj. Marek et al., EFFECTS OF CAFFEINE AND PD-116,600 ON THE DIFFERENTIAL-REINFORCEMENT-OF-LOW RATE 72-S (DRL 72-S) SCHEDULE OF REINFORCEMENT, Pharmacology, biochemistry and behavior, 45(4), 1993, pp. 987-990
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