Figure 1From: The feasibility of omitting irradiation to the contralateral lower neck in stage N1 nasopharyngeal carcinoma patientsDisease progression and overall survival in patients with stage N1 nasopharyngeal carcinoma treated with omitting irradiation to the contralateral lower neck. (A) overall survival (OS), (B) progress-free survival (PFS), (C) local failure-free survival (LFS), (D) distant metastasis-free survival(DMFS), and (F) nodal recurrence-free survival (NFS).Back to article page