“Frequency, Risk Factors and Antibiotic Sensitivity Pattern of Extended-Spectrum Beta-Lactamase Producing Escherichia coli and Klebsiella pneumoniae Causing Urinary Tract Infection: Experience from a Tertiary Care Hospital of Bangladesh”, Birdem Med J, vol. 7, no. 2, pp. 155–159, May 2017, doi: 10.3329/birdem.v7i2.32455.