Ahmed DF, AL-Jumaily RMK, Obaid MF. Serological Evaluation of Vitamin B12 and Homocysteine Levels in Colorectal Cancer Patients and their Relationships to Global DNA Methylation and P53 Expression. Iraqi Journal of Science [Internet]. 2026 Jan. 30 [cited 2026 Jul. 8];67(1):61-73. Available from: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/13223