Zhou et al. reported the results of a case-control study conducted on 163 AML cases and 204 controls and found that GSTT1 null genotype was associated with increased risk of AML in a Chinese population and no association between GSTM1 null genotype and GSTP1 Val/Val genotype and AML as independent factors [21]. Here, GSTP1 is linked to acute myeloid leukemia.