Jitendranath, A., and S. Koshy. “Community Acquired Pneumonia Due to Gram Negative Bacilli and Its Antibiotic Sensitivity Pattern in a Tertiary Care Centre”. International Journal of Research in Medical Sciences, vol. 4, no. 8, Jan. 2017, pp. 3121-4, doi:10.18203/2320-6012.ijrms20162205.