From: Sequential chemotherapy and intensity-modulated radiation therapy in the management of locoregionally advanced nasopharyngeal carcinoma: Experience of 370 consecutive cases
N0
N1
N2
N3
P Value
DFS
93.3
84.9
76.3
73.9
0.07
MFS
92.2
81.2
73.7
0.007
OS
100
91.2
88
0.006