Sengelv, G., Halling-Srensen, B. and Aarestrup, F.M. (2003) Susceptibility of Escherichia coli and Enterococcus faecium isolated from pigs and broiler chickens to tetracycline degradation products and distribution of tetracycline resistance determinants in E. coli from food animals. Veterinary Microbiology, 95, 91-101. doi10.1016/S0378-1135(03)00123-8 - References - Scientific Research Publishing