Table 1. Characteristics of the study population.

Characteristics	No. of patients
Total enrolled patients	30
Age
Median (years)	64
Range (years)	38–79
Gender
Males	24
Females	6
ECOG performance status
0	16
1	11
2	3
Disease extents
Visceral metastases	19
Regional lymph-node metastases only	11
Sites of diseases
Primary	14
Local recurrence	3
Lymph nodes	22
Lung	7
Liver	4
Bone	5
Others	2