Jain, Vijay Kumar, and Dilip Kumar Das. 2019. “Pre-Operative Anti-Microbial Administration for Prevention of Post-Operative Infections in Patients With Open Cholecystectomy and Laparoscopic Cholecystectomy”. International Surgery Journal 6 (2):392-96. https://doi.org/10.18203/2349-2902.isj20190077.