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	1.	Rat strain differences in the potentiation of morphine-induced analgesia by stress. [electronic resource] by Woolfolk, D R Holtzman, S G Producer: 19951019 In: Pharmacology, biochemistry, and behavior vol. 51 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Restraint stress potentiates analgesia induced by 5'-N-ethylcarboxamidoadenosine: comparison with morphine. [electronic resource] by Woolfolk, D R Holtzman, S G Producer: 19931201 In: European journal of pharmacology vol. 239 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	mu-, delta- and kappa-opioid receptor agonists do not alter the discriminative stimulus effects of cocaine or d-amphetamine in rats. [electronic resource] by Woolfolk, D R Holtzman, S G Producer: 19980504 In: Drug and alcohol dependence vol. 48 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Discrimination of gamma-hydroxybutyrate and ethanol administered separately and as a mixture in rats. [electronic resource] by Metcalf, B R Stahl, J M Allen, J D Woolfolk, D R Soto, P L Producer: 20011204 In: Pharmacology, biochemistry, and behavior vol. 70 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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