From: Recurrence patterns of locally advanced head and neck squamous cell carcinoma after 3D conformal (chemo)-radiotherapy
N0
N1
N2
N3
Total
T1
-
4
10
3
17
T2
12
15
5
32
T3
7
13
6
38
T4
18
28
8
61
TX
30
69
22
151