Strikingly, we found that PGA, a measure of the percent of the genome affected by genomic losses or gains, was positively correlated with increased Treg content in tumor tissue, an observation that held true for both self-identified races and one that was validated using previously published IHC for FOXP3+ cell densities in BL patients (29) and methylCIBERSORT data from the TCGA cohort (42). Here, FOXP3 is linked to Burkitt lymphoma.