Huda, Farhanul, and Sudhir Kumar Singh. “The Effect of Gallstone Presentation on Treatment Outcome in Symptomatic Cholelithiasis”. International Archives of BioMedical and Clinical Research 2, no. 2 (June 18, 2016): 40-42. Accessed November 13, 2019. https://iabcr.org/index.php/iabcr/article/view/208.