Heat maps of differentially expressed genes at diagnosis and relapse. Significant differentially expressed probes between diagnosis and relapse (A) in 49 relapse pairs (64 probes, 60 genes). (B) Heat maps for early relapse (n = 49, 166 probes, 148 genes) and late relapse (n = 35, 177 probes, 166 genes), respectively. Probes shown have a FWER less than < 0.1 and P value < .002.