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The Journal of Pharmacology and Experimental Therapeutics|July 1, 1990
Butorphanol, levallorphan, nalbuphine and nalorphine as antagonists in the squirrel monkeyL A DykstraPharmacology, Biochemistry, and Behavior|March 1, 1980
Meperidine's effect under shock titration and shock discrimination proceduresL A DykstraPsychopharmacology|January 1, 1988
Differential effects of opioid and nonopioid analgesics on conditional discriminations in pigeonsM Picker, L A DykstraThe Journal of Pharmacology and Experimental Therapeutics|December 1, 1987
Comparison of the discriminative stimulus properties of U50,488 and morphine in pigeonsM Picker, L A DykstraThe Journal of Pharmacology and Experimental Therapeutics|June 16, 2001
N-methyl-D-aspartate receptor antagonists potentiate the antinociceptive effects of morphine in squirrel monkeysR M Allen, L A DykstraPsychopharmacology|April 11, 1979
Joint effects of ethanol and caffeine on schedule-controlled responding in the pigeonM L Healey, L A DykstraThe Journal of Pharmacology and Experimental Therapeutics|December 1, 1994
Antinociceptive and response rate-altering effects of kappa opioid agonists, spiradoline, enadoline and U69,593, alone and in combination with opioid antagonists in squirrel monkeysR C Pitts, L A DykstraEuropean Journal of Pharmacology|October 26, 1988
Kappa antagonist properties of buprenorphine in the shock titration procedureS S Negus, L A DykstraPharmacology, Biochemistry, and Behavior|April 1, 1978
Electric shock titration: effects of meperidine, anileridine and alphaprodineL A Dykstra, J D LeanderPageof 16