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	1.	Effect of exercise on met-enkephalin in unfit and superfit individuals. [electronic resource] by De Sommers, K Simpson, S F Loots, J M Meyer, E C Dettweiler, A Daehne, H O Producer: 19900202 In: European journal of clinical pharmacology vol. 37 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Circulating met-enkephalin in trained athletes during rest, exhaustive treadmill exercise and marathon running. [electronic resource] by Sommers, D K Loots, J M Simpson, S F Meyer, E C Dettweiler, A Human, J R Producer: 19900629 In: European journal of clinical pharmacology vol. 38 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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