Table 3. Histopathological findings of inflammation.
| Grade 0 | Grade 1 | Grade 2 | Grade 3 | |
| Group 0 | 3 | 4 | - | - |
| Group 1 | - | 1 | 1 | 5 |
| Group 2 | 1 | 3 | 2 | 1 |
| Group 3 | - | 3 | 3 | 1 |
| Group 4 | 1 | - | 3 | 3 |
| Group 5 | 1 | 2 | 4 | |
| * Figures show rat numbers in related groups. | ||||
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