Fig. 4From: Establishment and validation of a nomogram with intratumoral heterogeneity derived from 18F-FDG PET/CT for predicting individual conditional risk of 5-year recurrence before initial treatment of nasopharyngeal carcinomaKaplan-Meier curves of risk group stratification for 5-Year progression-free survival (PFS). Nomogram-1 risk group stratification for the 55 and 89 percentiles are shown for the training cohort (a) and the validation cohort (b)Back to article page