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	1.	The action of penicillin on Cl. welchii type A. [electronic resource] by CROFTS, J E EVANS, D G Producer: 20040215 In: British journal of experimental pathology vol. 31 Availability: No items available. Save to lists Add to cart (remove)
	2.	Single cell culture of Cl. welchii type A morphologically changed by penicillin. [electronic resource] by JOHNSTONE, K I CROFTS, J E EVANS, D G Producer: 20040215 In: British journal of experimental pathology vol. 31 Availability: No items available. Save to lists Add to cart (remove)
	3.	Pertussis agglutinins in vaccinated children: better response with adjuvant. [electronic resource] by Preston, N W Mackay, R I Bamford, F N Crofts, J E Burland, W L Producer: 19750117 In: The Journal of hygiene vol. 73 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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