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	1.	[The occurrence of drug-resistant colicinogenic E coli strains in the fecal flora of calves. 2nd communication. Species of colicin types formed with simultaneous presence of resistance against antibiotics and sulfonamides]. [electronic resource] by Gedek, B Schäl, E Producer: 19760706 In: Zentralblatt fur Veterinarmedizin. Reihe B. Journal of veterinary medicine. Series B vol. 23 Availability: No items available. Save to lists Add to cart (remove)
	2.	[The occurrence of drug-resistant colicinogenic E coli strains in the fecal flora of calves. 1st communication. Frequency under therapeutic and nutritive antibiotic dosage]. [electronic resource] by Gedek, B Schäl, E Producer: 19760706 In: Zentralblatt fur Veterinarmedizin. Reihe B. Journal of veterinary medicine. Series B vol. 23 Availability: No items available. Save to lists Add to cart (remove)
	3.	[Appearance of drug-resistant, colicinogenic E. coli strains in dead calves and piglets]. [electronic resource] by Gedek, B Schäl, E Producer: 19760423 In: DTW. Deutsche tierarztliche Wochenschrift vol. 83 Availability: No items available. Save to lists Add to cart (remove)

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