Taha HT Al-Saigh, Shatha A Abdulmawjood and Faris A Ahmed 2022. Prognostic factor of serum carcinoembryonic antigen in colorectal cancer patients: a follow up study. Al Mustansiriyah Journal of Pharmaceutical Sciences. 21, 3 (Apr. 2022), 1–6. DOI:https://doi.org/10.32947/ajps.v21i3.791.