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	1.	Isolation of catenated forms of R factor DNA from minicells. [electronic resource] by Cohen, S N Silver, R P McCoubrey, A E Producer: 19711014 In: Nature: New biology vol. 231 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	The problems of drug-resistant pathogenic bacteria. Studies on the molecular nature of R factors. [electronic resource] by Cohen, S N Silver, R P Sharp, P A McCoubrey, A E Producer: 19711112 In: Annals of the New York Academy of Sciences vol. 182 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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