KRAS and hepatoblastoma: Further analysis also showed that hepatoblastoma risk was not significantly associated with the KRAS polymorphisms rs12587 G > T, rs7973450 A > G, and rs7312175 G > A in children aged more than 17 months (P = 0.179, P = 0.286, and P = 0.383) or younger (P = 0.998, P = 0.486, and P = 0.189), nor in females (P = 0.963, P = 0.916, and P = 0.344) and males (P = 0.231, P = 0.750, and P = 0.765).