Dutta Ram U, and Ganesh Agarwal. “Management of Perforated Duodenal Ulcer at a Tertiary Care Hospital”. Asian Pacific Journal of Health Sciences 8, no. 1 (January 26, 2021): 108–110. Accessed April 12, 2024. https://www.apjhs.com/index.php/apjhs/article/view/1447.