Al-dujaili, A. H., W.F. Al-Taei, K. M. Turky, and G. H. Al-Ubaidi. “Comparative Study of CA19-9 Levels As Tumor Marker in Sera and Tissues of Breast, Prostate and Thyroid Cancer Patients”. Ibn AL-Haitham Journal For Pure and Applied Sciences 22, no. 1 (August 16, 2017). Accessed March 14, 2025. https://jih.uobaghdad.edu.iq/index.php/j/article/view/1273.