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Comparison of visual observation of pharyngeal tissue of rats in each group ( ± s, n = 12).
| Group | Dose | − | + | ++ | +++ |
|---|---|---|---|---|---|
| Blank group | – | 12 | 0 | 0 | 0 |
| Model group | – | 0 | 0 | 5 | 7 |
| Yinhuang group | 10 ml/kg | 0 | 4 | 8 | 0 |
| Compound lobelia | 30 g/kg | 0 | 6 | 6 | 0 |
| 15 g/kg | 0 | 4 | 7 | 1 | |
| 7.5 g/kg | 0 | 3 | 6 | 3 |
