AL-Bayatti AA, AL-Rawak khdier, AL-Masral ragad I. CEA, CA19-9 & A-FP as tumor markers for colorectal carcinoma. J Fac Med Baghdad [Internet]. 2006 Apr. 2 [cited 2025 Apr. 28];48(1):36-40. Available from: https://iqjmc.uobaghdad.edu.iq/index.php/19JFacMedBaghdad36/article/view/1554