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. The gene discussed is CYP1B1; the disease is acute lymphoblastic leukemia.