Khalf, Sudad A., and Kifah H. Abdulghafour. “CA19-9 and CK Immunohistochemical Expression in Pancreatic and Ampulla of Vater Carcinomas (A Clinicopathological Study”. Journal of the Faculty of Medicine Baghdad 56, no. 3 (October 1, 2014): 308–312. Accessed April 28, 2024. https://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/508.