Nursal AF, Yigit S, Rustemoglu H, Cenikli A. A Case-Control Study Investigating the Effect of MTHFR C677T Variant on Performance of Elite Athletes. Endocr Metab Immune Disord Drug Targets. 2021;21(9):1685–90. doi: 10.2174/1568026620666201022144819. PMID: 33092515.