Saha, Shusmita, et al. “Prophylactic Use of Ciprofloxacin-Metronidazole and Ceftriaxone-Metronidazole in Appendectomy & Cholecystectomy in Dhaka National Medical College Hospital”. Journal of Dhaka National Medical College & Hospital, vol. 23, no. 1, Mar. 2017, pp. 26-28, doi:10.3329/jdnmch.v23i1.78060.