Nadir, Fenik A., and Zeyan A. Ali. “Investigation of Homocysteine, Vitamin B6 and Vitamin D Among Patients With Colorectal Cancer”. Polytechnic Journal 12, no. 2 (April 16, 2023): 168-173. Accessed May 7, 2024. https://journals.epu.edu.iq/index.php/polytechnic/article/view/863.