Table 2.
Tumor margin involvement status based on different tumor primary locations and sizes
| Tumor margin involvement | Tumor size | |
|---|---|---|
| < 1 cm | 1–2 cm | |
| Yes (positive margin) | ||
| Stomach | 7 | 1 |
| Bulb | 4 | 5 |
| Rectum | 5 | 0 |
| No (clear margin) | ||
| Stomach | 4 | 3 |
| Bulb | 1 | 2 |
| Rectum | 1 | 3 |
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