Baron, Sandrine Longitudinal study of Escherichia coli plasmid resistance to extended-spectrum cephalosporins in free-range broilers. [electronic resource] - Veterinary microbiology Mar 2018 - 20-24 p. digital Publication Type: Journal Article ISSN: 1873-2542 Standard No.: 10.1016/j.vetmic.2018.01.012 doi Subjects--Topical Terms: AnimalsAnti-Bacterial Agents--pharmacologyCephalosporins--pharmacologyChickens--microbiologyDrug Resistance, Multiple, BacterialEscherichia coli--drug effectsEscherichia coli Infections--veterinaryFeces--microbiologyLongitudinal StudiesPlasmids--drug effectsPoultry--microbiologyPoultry Diseases--microbiologybeta-Lactamases--biosynthesis