Rai, Vandana. 2014. “Maternal Methylenetetrahydrofolate Reductase (MTHFR) Gene A1298C Polymorphism and Risk of Nonsyndromic Cleft Lip and Or Palate (NSCL P) in Offspring: A Meta-Analysis”. Asian Journal of Medical Sciences 6 (1): 16-21. https://doi.org/10.3126/ajms.v6i1.10281.