Rai, V. “Genetic Polymorphisms of Methylenetetrahydrofolate Reductase (MTHFR) Gene and Susceptibility to Depression in Asian Population: A Systematic Meta-Analysis”. Cellular and Molecular Biology, vol. 60, no. 3, Oct. 2014, pp. 29-36, https://cellmolbiol.org/index.php/CMB/article/view/527.