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	1.	[Determination of biological activity of polysynthetic penicillins by the agar diffusion method]. [electronic resource] by Druzhinina, E N Suvorkina, D V Producer: 19681028 In: Antibiotiki vol. 13 Availability: No items available. Save to lists Add to cart (remove)
	2.	[Agar diffusion method for determining tylosin activity and use of this method for titration of an international reference preparation of tylosin]. [electronic resource] by Druzhinina, E N Suvorkina, D V Producer: 19740322 In: Antibiotiki vol. 18 Availability: No items available. Save to lists Add to cart (remove)
	3.	[The influence of the purity of the standard on the results of determining tetracyline activity using two test cultures]. [electronic resource] by Druzhinina, E N Suvorkina, D V Producer: 19740612 In: Antibiotiki vol. 18 Availability: No items available. Save to lists Add to cart (remove)
	4.	[Determination of the content of triacetyloleandomycin and tetracycline in dry suspensions of oletetrine by the agar diffusion method]. [electronic resource] by Druzhinina, E N Suvorkina, D V Producer: 19690602 In: Antibiotiki vol. 13 Availability: No items available. Save to lists Add to cart (remove)
	5.	[DETERMINATION OF THE BIOLOGICAL ACTIVITY OF TETRACYCLINE AND OLEANDOMYCIN IN SIGMAMYCIN PREPARATIONS]. [electronic resource] by TEBIAKINA, A E DRUZHININA, E N SUVORKINA, D V Producer: 19961201 In: Antibiotiki vol. 8 Availability: No items available. Save to lists Add to cart (remove)
	6.	[Effect of benzylpenicillin presence in polysynthetic penicillins on the result of the determination of their biological activity]. [electronic resource] by Druzhinina, E N Tebiakina, A E Suvorkina, D V Producer: 19711230 In: Antibiotiki vol. 16 Availability: No items available. Save to lists Add to cart (remove)
	7.	[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)
	8.	[Pharmacokinetic characteristics and the chemotherapeutic effectiveness of a 2% ditetracycline-erythromycin eye ointment]. [electronic resource] by Vasil'ev, V K Bodunkova, L E Kagan, E Z Druzhinina, E N Suvorkina, D V Producer: 19760802 In: Antibiotiki vol. 21 Availability: No items available. Save to lists Add to cart (remove)