“The C677t and A1298c Polymorphisms of Methylenetetrahydrofolate Reductase (Mthfr) Gene ”. Annals of Medical Research 16, no. 3 (May 25, 2021): 0157–0161. Accessed May 12, 2025. http://www.annalsmedres.org/index.php/aomr/article/view/3433.