Fig. 1From: PET/CT-guided dose-painting versus CT-based intensity modulated radiation therapy in locoregional advanced nasopharyngeal carcinomaKaplan-Meier survival curves for the PET/CT-guided DP-IMRT and CT-based IMRT groups. LFFS (a), RFFS (b), LRFFS (c), DMFS (d), DFS (e) and OS (f). P values were calculated using the log-rank testBack to article page