Real-time qRT-PCR validation of microarray data. Relative fold changes in the expression of genes selected from gene clusters A and B (Figure 1). Patients LH1 (1), LH2 (2), LH3 (3), LH4 (4), LH6 (5), LH7 (6), LH8 (7), LH9 (8), LH11 (9), LH12 (10), LH13 (11), LH15 (12), LH16 (13), LH17 (14), LH18 (15), LH19 (16), LH21 (18) LH22 (19), LH23 (20), and LH26 (21) are represented by bars. Red bars indicate patients who relapsed and blue bars those who did not.