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Patient characteristics
| Characteristics | n |
| Sex (M/F) | 37 (30/7) |
| Mean age (yr) | 60.32 |
| Location of tumor | |
| Cervical | 1 |
| Upper thoracic | 6 |
| Middle thoracic | 19 |
| Lower thoracic | 11 |
| T-classification | |
| T3 | 14 |
| T4 | 15 |
| N-classification | |
| N0 | 24 |
| N1 | 13 |
| M-classification | |
| M0 | 28 |
| M1 | 9 |
| Disease stage (UICC TNM stage) | |
| IIa | 17 |
| III | 13 |
| IVa | 2 |
| IVb | 5 |
