From: Influence of target dose heterogeneity on dose sparing of normal tissue in peripheral lung tumor stereotactic body radiation therapy
Variable
N
%
Age (years)
 Median (range)
53 (36–80)
Gender
 Male
23
76.7
 Female
7
23.3
Histology
 Primary
15
50
 Metastatic
Site
 Right
13
43.3
 Left
17
56.7
PTV volume (cm3)
18.21 (9.48–29)