Katyal, A., K. Bala, A. Bansal, and U. Chaudhary. “Clinico-Microbiological Analysis of Bactibilia Isolates in Patients of Cholecystectomy”. International Journal of Research in Medical Sciences, vol. 5, no. 9, Aug. 2017, pp. 4030-5, doi:10.18203/2320-6012.ijrms20173977.