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Clinical characteristics of 74 patients with esophageal cancer
| Numbers of patients | |
| Age (mean), years | 36-79 (59.5) |
| Sex | |
| Male | 71 |
| Female | 3 |
| Differentiation | |
| Well | 0 |
| Moderate | 49 |
| Poor | 25 |
| Tumor site | |
| T1 | 3 |
| T2 | 10 |
| T3 | 50 |
| T4 | 11 |
| Lymph node | |
| N0 | 24 |
| N1 | 50 |
| Metastasis | |
| M0 | 60 |
| M1 | 14 |
| Stage | |
| I | 2 |
| II | 25 |
| III | 33 |
| IV | 14 |
