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| Characteristic | Patients (N = 20) |
|---|---|
| Sex, No. (%) | |
| Male | 15 (75) |
| Female | 5 (25) |
| Age, median (range), y | 62 (46-87) |
| Primary tumor site, No. (%) | |
| Oral tongue | 12 (60) |
| Floor of mouth | 5 (25) |
| Alveolar ridge | 2 (10) |
| Mucosal lip | 1 (5) |
| T classification, No. (%) | |
| 1 | 7 (35) |
| 2 | 11 (55) |
| 3 | 2 (10) |
