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The receiver operator characteristic (ROC) curves to discriminate pLN+ from pLN− for the five models on the training cohort (A) and testing cohorts (B). AUC, area under the curve; TR, radiomics model of tumor; TMR, radiomics model of tumor and mesorectum; CTR, clinical-tumor radiomics model; CTMR, clinical-tumor and mesorectum radiomics model.
