Elghali, M. A., I. Massoudi, R. Ghrissi, T. Dhibet, and F. Hamila. “Chronic Right Lumbar Suppuration Following Stone Forgotten During Laparoscopic Cholecystectomy”. International Surgery Journal, vol. 4, no. 4, Mar. 2017, pp. 1494-6, doi:10.18203/2349-2902.isj20171170.