Table 1.

Patients’ characteristics.

		Number of patients (N = 50)
Gender, N	Male	26
	Female	24
Age of diagnosis	Median	65
	Range	37-82
Smoker, N	Smokers	16
	Non-smokers	16
	Ex-smokers	18
TNM stage, N	I	2
	II	13
	III	25
	IV	10
Metastasis	Yes	26
	No	24