Liblab et al. (2020) found that carriers of AG genotype were more frequently experienced grade 2-4 anemia than AA genotype in 52 ovarian cancer patients (81.82% vs. 46.34%, p = 0.036). Five studies demonstrated no significant association of GSTP1 rs1138272 (Ala114Val) polymorphism. Here, GSTP1 is linked to anemia (phenotype).