Khan MS, Zeb J, Ahmad A, Zaman A. AETIOLOGICAL FACTORS OF NON-TRAUMATIC DUODENAL PERFORATION. Pak J Phsyiol [Internet]. 2017 Mar. 31 [cited 2024 Nov. 21];13(1):19-21. Available from: https://pjp.pps.org.pk/index.php/PJP/article/view/259