The genotype frequencies of CYP1B1, CYP3A4, CYP3A5, GSTT1, GSTM1, and SULT1A1 according to ethnicity distribution among ALL (infant ALL, ALL 13–24 months) and AML are shown in S1 and S2 Tables. Here, CYP3A4 is linked to acute lymphoblastic leukemia.