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Pathological classification of tongue tissues at different administration times.
| Pathological lesions | ||||||
|---|---|---|---|---|---|---|
| Groups | No. | Normal epithelial | Mild epithelial dysplasia | Moderate-severe epithelial dysplasia | In situ carcinoma | Invasive carcinoma |
| 1 (8 weeks) | 10 | 0 | 7 | 3 | 0 | 0 |
| 2 (16 weeks) | 10 | 0 | 2 | 4 | 3 | 1 |
| 3 (24 weeks) | 10 | 0 | 0 | 1 | 6 | 3 |
| 4 (Control) | 10 | 10 | 0 | 0 | 0 | 0 |
| Total | 40 | 10 | 9 | 8 | 9 | 4 |
