Zhang, Hongna, Xiaonan Zhao, Xuepeng Wang, and Weishan Chang. 2017. “Prevalence and Antimicrobial Resistance Profiles of Escherichia Coli Isolated from Free-Range Pigs: E. Coli from Free-Ranging Pigs”. The Journal of Infection in Developing Countries 11 (08):652-55. https://doi.org/10.3855/jidc.9269.