To investigate whether the polymorphisms of the four SNPs of FOXP3 (rs3761549C/T and rs3761548C/A) and ROR-γ (rs9017A/G & rs9826A/G) genes were associated with OS of ALL patients, the survival analyses of various genotypes are presented in Fig. 2a, b. This evidence concerns the gene RORC and acute lymphoblastic leukemia.