Dilawaiz, M. ., Hameed, F. ., Riaz, O. ., Saleem Iqbal, M. ., & Hussain, R. . (2011). Three Port Versus Four Port Laparoscopic Cholecystectomy. Annals of Punjab Medical College, 6(1), 80–84. https://doi.org/10.29054/apmc/2012.498