This pattern was consistent with those of other autism risk genes, such as GRIN2B (correlation coefficient (r) = 0.65, p < 2.2e-16), SCN2A (r = 0.64, p < 2.2e-16), and CACNA1D (r = 0.51, p < 2.2e-16), suggesting a coordinated increase during the fetal third trimester (Fig. 4e, f). This evidence concerns the gene SCN2A and autism.