Arredondo-García, Jose Luis, and Carlos F. Amábile-Cuevas. “High Resistance Prevalence towards Ampicillin, Co-Trimoxazole and Ciprofloxacin, Among Uropathogenic Escherichia Coli Isolates in Mexico City”. The Journal of Infection in Developing Countries, vol. 2, no. 05, Oct. 2008, pp. 350-3, doi:10.3855/jidc.195.