N Ganguly, N., Phukan Ray, R., Lahkar, M. and Siddiqui, A. 2016. A prospective, randomized, double blind controlled trial of the use of preoperative antibiotics in routine abdominal surgery: A comparative analysis between Ofloxacin + Metronidazole, Cefotaxime + Sulbactum and Cefepime +Tazobactum (Single does vs. Three . International Journal of Medical Research and Review. 4, 4 (Apr. 2016), 480-485. DOI:https://doi.org/10.17511/ijmrr.2016.i04.03.