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	1.	Neutron activation analysis of trace elements in biological tissue. [electronic resource] by Velandia, J A Perkons, A K Producer: 19751030 In: Acta cientifica venezolana vol. 25 Availability: No items available. Save to lists Add to cart (remove)
	2.	Trace elements in human head hair. [electronic resource] by Perkons, A K Jervis, R E Producer: 19660520 In: Journal of forensic sciences vol. 11 Availability: No items available. Save to lists Add to cart (remove)
	3.	Forensic aspects of trace element variation in the hair of isolated Amazonas Indian tribes. [electronic resource] by Perkons, A K Velandia, J A Dienes, M Producer: 19861215 In: Journal of forensic sciences vol. 22 Availability: No items available. Save to lists Add to cart (remove)
	4.	An inquest on the death of Charles Francis Hall. [electronic resource] by Paddock, F K Loomis, C C Perkons, A K Producer: 19700420 In: The New England journal of medicine vol. 282 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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