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Patient characteristics
| Age (median) (years) | 73 |
| Male-n (%) | 19 (51) |
| Smoking-n (%) | 37 (100) |
| Location | |
| Left upper lobe-n (%) | 13 (35) |
| Left lower lobe-n (%) | 4 (11) |
| Right upper lobe-n (%) | 7 (20) |
| Right medial lobe-n (%) | 1 (3) |
| Right lower lobe-n (%) | 10 (30) |
| Right hilar lymph nodal region-n (%) | 2 (5) |
| Stage | |
| Stage I-n (%) | 22 (59) |
| Stage II-n (%) | 2 (5) |
| Stage III-n (%) | 5 (14) |
| Stage IV-n (%) | 8 (22) |
| Dose of radiation received | |
| 5000 cGy-n (%) | 3 (8) |
| 6000 cGy-n (%) | 34 (92) |
