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Akwar, Holy T., Cornelis Poppe, Jeff Wilson, Richard J. Reid-Smith, Monica Dyck, Josh Waddington, Dayue Shang, and Scott A. McEwen. Associations of Antimicrobial Uses With Antimicrobial Resistance of Fecal Escherichia Coli From Pigs On 47 Farrow-to-finish Farms in Ontario and British Columbia. Canadian Veterinary Medical Association, 2008.

Akwar, Holy T., et al. Associations of Antimicrobial Uses With Antimicrobial Resistance of Fecal Escherichia Coli From Pigs On 47 Farrow-to-finish Farms in Ontario and British Columbia. Canadian Veterinary Medical Association, 2008.