Table 1.
| Demographic characteristics | |
|---|---|
| Male | 18 (45%) |
| Female | 22 (55%) |
| Mean age (range) | 60.1 (39-79) |
| No smoker | 26 (65%) |
| Light smoker (<10) | 11 (27.5%) |
| Heavy smoker (≥10) | 3 (7.5%) |
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