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| Primary sites | CEA Positive | Total |
|---|---|---|
| Lung | 7 (78%) | 9 |
| Colon | 7 (100%) | 7 |
| Breast | 4 (57%) | 7 |
| Stomach | 2 (67%) | 3 |
| Ovary | 0 (0%) | 2 |
| Unknown | 1 (50%) | 2 |
CEA= carcinoembryonic antigen.
