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3. Changes in body temperature after administration of acetylcholine, histamine, morphine, prostaglandins and related agents;Clark;Neurosci. Behav Rev.,1980
4. L-tyrosine potentiation of opioid-induced analgesia;Hull;The Pharmacologist,1992
5. Effect of morphine exposure on mouse liver triglyceride formation;Lamb;J. Pharmac. exp. Ther.,1981