NAT2 and acute lymphoblastic leukemia: After child's birth, the MDR identified to NAT2_rs1799929 as the best one factor (TBA 6021 CVC 10/10) and the six-factor interaction model NAT2_rs1041983, NAT2_rs1799929, NAT2_rs1799931, NQ01_rs1800566-insecticide exposition after child's birth (IEAB)-active smoking by the father after child's birth (ASFAB) as the best model for ALL with a TBA of 0.6062 and CVC 9/10 (Table 5).