Survival analysis. PFS (A,C,E) and OS (B,D,F) for patients with aaIPI of 0 without bulk (A-B), aaIPI of 1 (C-D), and aaIPI of 2 to 3 (E-F) according to first-line therapy (R-ACVBP vs R-CHO(E)P). Log-rank P values are presented.
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