Jiménez, Adriana, and Germán Carrero Forero. 2013. “Risk Factors in Extenoeo-Spectrum Betalactamase Producing Escherichia Coli Ano Klebsiella Pneumoniae Infection and Colonization”. Journal of Medicine and Surgery Repertoire 22 (1): 10-20. https://doi.org/10.31260/RepertMedCir.v22.n1.2013.843.