Al-Marzooq, Tawfiq J., Ragad E. Naji, Ali K. Al-Majidi, and Yaser Abbas. “The Use of Serum Amylase As a Predictive Factor for Mortality in Perforated Duodenal Ulcer”. Journal of the Faculty of Medicine Baghdad 57, no. 4 (January 3, 2016): 295–298. Accessed April 27, 2024. https://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/393.