Rawaa Jawad, et al. “Prevalence of Colistin Pan Resistance Among Multidrug-Resistant and Extensively Drug-Resistant Escherichia Coli O157:H7”. Journal of Medical and Health Studies, vol. 5, no. 2, Apr. 2024, pp. 48-53, https://doi.org/10.32996/jmhs.2024.5.2.5.