Outcome of the follicular lymphoma in the 2 treatment arms according to the different groups defined by the FLIPI. (A) Event-free survival in low- and intermediate-risk FLIPI patients. (B) Overall survival in low- and intermediate-risk FLIPI patients. (C) Event-free survival in high-risk FLIPI patients. (D) Overall survival in high-risk FLIPI patients. Arm A (CHVP+I): blue solid line; Arm B (R-CHVP+I): dotted red line.