Heatmap of scaled log₂ fold-change of significantly expressed genes (P < .01, log₂ fold-change > 2) EBV-positive vs EBV-negative samples. Clustering was performed by using Spearman correlations, and covariates are shown within the figure. ab, aberrated; FISH, fluorescence in situ hybridization; NA, not available; PD, progression disease; R, remission; SD, stable disease; wt, wild type.