Fig. 3From: Distribution pattern and prognosis of metastatic lymph nodes in cervical posterior to level V in nasopharyngeal carcinoma patientsThe 5-year survival curve of patients with N3 NPC with or without lymph node metastasis in the PLV region. a OS (P = 0.007), b PFS (P = 0.005), c LRFS (P = 0.521), d DMFS (P < 0.001)Back to article page