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| Clinical parameters | Values |
|---|---|
| Mean age (range years) | 59.5 (34-83) |
| Sex (Male/Female) | 43/22 |
| Differentiation (poor/moderate/well) | 3/52/10 |
| Lymph node metastasis | 25/65 (38.5%) |
| Remote organ metastasis | 0 |
