SAMHD1 and diffuse large B-cell lymphoma: To validate our finding of an association of low SAMHD1 expression with improved outcomes in DLBCL, we analyzed three publicly available datasets from the Genomics Data Commons (GDC) data portal (47), including 40 cases from The Cancer Genome Atlas (TCGA), 41 cases from Clinical Trial Sequencing Project (CTSP), and 481 cases from NCI Center for Cancer Research (NCICCR) with only the NCICCR dataset containing extractable survival data.