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	1.	[Increase in the sensitivity and a simplification of the method for the separate determination of antibiotic activities in combined preparations (oletetrin) by using media with a varying pH value]. [electronic resource] by Makarova, R A Levkovich, N M Suvorkina, D V Chaĭkovskaia, S M Producer: 19801125 In: Antibiotiki vol. 25 Availability: No items available. Save to lists Add to cart (remove)
	2.	[Effect of different grades of agar-agar on the nature of the test microbe growth inhibition zones in controlling antibiotic activity by means of agar diffusion]. [electronic resource] by Makarova, R A Chaĭkovskaia, S M Semenov, S M Vakulenko, N A Levkovich, N M Producer: 19781027 In: Antibiotiki vol. 23 Availability: No items available. Save to lists Add to cart (remove)
	3.	[Changes in microorganism sensitivity to antibiotics as affected by divalent metal ions]. [electronic resource] by Chaĭkovskaia, S M Navashin, S M Tochenaia, N P Levkovich, N M Makarova, R A Producer: 19810526 In: Antibiotiki vol. 26 Availability: No items available. Save to lists Add to cart (remove)
	4.	[Comparative study of the quantitative determination of kanamycin sulfate in ophthalmic films with a collagen base by microbiological and chemical methods]. [electronic resource] by Ivanova, L A Abramova, T A Levkovich, N M Okhotnikova, V F Kartashov, V S Producer: 19850321 In: Antibiotiki vol. 29 Availability: No items available. Save to lists Add to cart (remove)

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