Muhammad Alam, Rizmi Tahir, Siddique Ahmad, Sheema Amin, Amir Zareen, Ali Gohar Khan. Frequency of Helicobacter Pylori (H. Pylori) among Patients presenting with Duodenal Perforation. Pakistan Journal of Medical & Health Sciences [Internet]. 2023 Mar. 29 [cited 2024 Dec. 22];17(03):142. Available from: https://mail.pjmhsonline.com/index.php/pjmhs/article/view/4311