Chauhan, Sapna, Bhim Singh Mahawal, and Durgesh Chand Ramola. 2017. “Extended Spectrum β-Lactamases in Urinary Isolates of Escherichia Coli - Prevalence and Susceptibility Pattern at a Tertiary Care Hospital”. International Journal of Research in Medical Sciences 3 (7):1622-26. https://doi.org/10.18203/2320-6012.ijrms20150240.