Table 1.
Comparison of histopathologic changes between the PRACT group and the untreated group
| Histopathologic grade | PRACT group (n = 68) | Untreated group (n = 42) |
| 0 | 26 | 26a |
| I | 22 | 12 |
| II | 16 | 4 |
| III | 4 | 0 |
a
P < 0.05, vs I + II + III
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