Naghibalhossaini F, Shefaghat M, Mansouri A, Jaberi H, Tatar M, Eftekhar E. The Impact of Thymidylate Synthase and Methylenetetrahydrofolate Reductase Genotypes on Sensitivity to 5-Fluorouracil Treatment in Colorectal Cancer Cells. Acta Med Iran. 2018;55(12):751-758.