Progress in the treatment of elderly patients with DLBCL. Survival curves are shown for 6 × CHOP-21 and 6 × CHOP-14 from the NHLB-2 trial26 and for 6 × R-CHOP-14 + 2R from the RICOVER-60 trial27 of the DSHNHL. The dashed line shows the 2.5-year survival.