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Survival curves of patients at high and low risk as identified with MTV/ECOG, IMPI, and clinical PET models using 2-year progression-free survival as outcome. (A) Risk groups of the MTV/ECOG as defined in the original publication32 and high-risk groups of the IMPI and clinical PET models are of equal size as the high-risk IPI group. (B) Risk groups for all models are of equal size as the MTV/ECOG groups.
