Malik M, Magsi AM, Parveen S, Khan MI, Iqbal M. Duodenal ulcer perforation and its consequences. J Pak Med Assoc [Internet]. 2023 Jun. 15 [cited 2024 Dec. 2];73(7):1506-10. Available from: https://jpma.org.pk/index.php/public_html/article/view/4768