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| Variables | N (%) |
|---|---|
| Sex, male | 23(82.1%) |
| Age, >60 | 7(24.14%) |
| TNM stage | |
| I | 13(44.83%) |
| II | 9(31.03%) |
| III | 5(17.24%) |
| IV | 2(6.90%) |
| Maximum tumor size (>5 cm) | 9(31.03%) |
| Histological grade | |
| I | 0(0.00%) |
| II | 15(51.72%) |
| III | 14(48.28%) |
| IV | 0(0.00%) |
