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Clinical characteristics.
| Clinical variable | Category | Clinical level |
| Age | Mean | 54 (31–83) |
| Gender | Male | 62 |
| Female | 47 | |
| Unknown | 1 | |
| Samples type | H&E | 1 |
| Metastasis and recurrence period | Tumor Free | 35 |
| Loco regional recurrence | 15 | |
| Distant metastasis | 60 | |
| Cancer subtype | Adenocarcinoma | 58 |
| Squamous carcinoma | 52 |
