From: Determination of cytokine protein levels in oral secretions in patients undergoing radiotherapy for head and neck malignancies
Site
n
Oral cavity
2
Oropharynx
5
Larynx
Hypopharynx
T-stage
T1
1
T2
3
T3
T4
4
N-stage
N0
N1
-
N2
7
N3