Fig. 3

PFS estimates for initial RT/re-RT for patients with locoregional recurrence of head and neck squamous cell carcinoma (LR-HNSCC). Valid n = 101, analysis according to Kaplan–Meier. PFS = progression-free survival
PFS estimates for initial RT/re-RT for patients with locoregional recurrence of head and neck squamous cell carcinoma (LR-HNSCC). Valid n = 101, analysis according to Kaplan–Meier. PFS = progression-free survival