From: Rules of parotid gland dose variations and shift during intensity modulated radiation therapy for nasopharyngeal carcinoma
N
Age (yrs)
Medial: 51 (range 28 ~ 71)
Gender
Male:
29
Female:
18
T
1
13
2
19
3
7
4
8
0
16
5
Stage
I
II
15
III
17
IVa
6
IVb