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J. A. Byrd, D. E. Corrier, J. R. DeLoach, D. J. Nisbet, Comparison of Drag-Swab Environmental Protocols for the Isolation of Salmonella in Poultry Houses, Avian Diseases, Vol. 41, No. 3 (Jul. - Sep., 1997), pp. 709-713
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Byrd et al. (1997) studied this question.
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