“Single Dose Intraoperative Antibiotics Versus Postoperative Antibiotics for Patient Undergoing Laparoscopic Cholecystectomy for Symptomatic Cholelithiasis: A Randomized Clinical Trial”. Journal of Lumbini Medical College, vol. 5, no. 1, July 2017, pp. 13-17, https://doi.org/10.3126/jlmc.v5i1.17680.