Fig. 3From: Clinical treatment considerations in the intensity-modulated radiotherapy era for patients with N0-category nasopharyngeal carcinoma and enlarged neck lymph nodesKaplan–Meier survival curves of N0-category NPC patients in the small ENLN group stratified by a biological equivalent dose (BED) < or ≥72 Gy. a Regional relapse-free survival; b disease-free survival; c overall survival; d distant metastasis-free survival. NPC nasopharyngeal carcinoma, ENLN enlarged neck lymph nodeBack to article page