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Immunohistochemistry detecting TTF-1 in control and nodular goiter groups.
| Group | Staining result | |||||
|---|---|---|---|---|---|---|
| Cases (n) | Negative | Positive | Strong positive | Positive rate (%) | Strong positive rate (%) | |
| Control | 30 | 0 | 30 | 12 | 100 | 40∗ |
| Nodular goiter | 30 | 0 | 30 | 24 | 100 | 80∗ |
∗ P < 0.01.
