Ullah AF, Nasim MMH, Salam A, Tayeb M. Gallstone Ileus: A Rare Surgical Emergency. Chatt Maa Shi Hosp Med Coll J [Internet]. 2022 Dec. 8 [cited 2025 Oct. 22];21(2):57-9. Available from: https://www.banglajol.info/index.php/CMOSHMCJ/article/view/63141