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Association between the identification of CTCs and lung cancer.
| Lung cancer | Nonlung cancer | Marginal row totals | |
|---|---|---|---|
| Positive CTCs | 9 | 0 | 9 |
| Negative CTCs | 3 | 6 | 9 |
| Marginal column totals | 12 | 6 | 18 |
CTCs: circulating tumor cells. The Fisher’s exact test statistic value was 0.009, reaching a statistically significant level (P < .05).
