RAN and Nephroblastoma: As shown in Table 2 and Table 3, the RAN rs56109543 CT/TT genotypes (adjusted OR=1.98, 95% CI=1.15-3.38, P=0.013) and RAN rs7132224 AG/GG genotypes (adjusted OR=2.80, 95% CI=1.64-4.77, P=0.0002) increased the risk of Wilms tumor among the children aged ≤18 months.