Umer S, Butt UI, Toor AA, Razzaq Z, Farooka MW, Noreen S, et al. GALLSTONE ILEUS WITH CHOLECYSTO-DUODENAL FISTULA IN AN ELDERLY MALE. J Ayub Med Coll Abbottabad [Internet]. 2018 Nov. 27 [cited 2025 Mar. 13];30(4):610-2. Available from: https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/1327