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	1.	Environmental enrichment decreases intravenous amphetamine self-administration in rats: dose-response functions for fixed- and progressive-ratio schedules. [electronic resource] by Green, T A Gehrke, B J Bardo, M T Producer: 20030107 In: Psychopharmacology vol. 162 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Effects of beta-funaltrexamine and naloxonazine on single-trial morphine-conditioned place preference and locomotor activity. [electronic resource] by Bardo, M T Gehrke, B J Shortridge, B E Rauhut, A S Producer: 20030804 In: Pharmacology, biochemistry, and behavior vol. 74 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	The effect of neurotoxic doses of methamphetamine on methamphetamine-conditioned place preference in rats. [electronic resource] by Gehrke, B J Harrod, S B Cass, W A Bardo, M T Producer: 20030507 In: Psychopharmacology vol. 166 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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