Table 1.

Characteristics of the patients

Characteristics	Value
Male/female, n	21/66
Age, yr	63 ± 8
Site of tumor, n
Upper thoracic	17
Middle thoracic	39
Lower thoracic	31
Tumor size, cm	3 ± 1.5
Stage of tumor, n
I	12
IIa	21
IIb	43
III	11

Note: Values are means ± standard deviation were available.