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Kaplan-Meier estimates of overall survival (A, C, E) and progression- free survival (B, D, F) for the 163 relapsed/primary refractory DLBCL patients stratified by the saaIPI as either low- (A, B), low-intermediate/high-intermediate (C, D) or high risk (E, F) were further stratified into low or high groups by the ALC/AMC ratio.
