VEGFA and Infertility: There was a significant difference in the allele distributions of VEGF–936C/T polymorphism between infertile women with RIF and the control group, the frequency of the T936 allele being higher than that for the control group (28.0% vs. 14.8%) and demonstrated a 2.25-fold increased odds of implantation failure (OR = 2.25, 95% CI: [1.05, 4.81], p = 0.034).