| Symptoms | Degree |
|---|---|
| Able to swallow solid foods without any problems | 0 |
| Able to swallow solid food with a bit tricky | 1 |
| Only able to swallow soft food or semi-solid | 2 |
| Able to swallow only watery foods or liquids | 3 |
| Inability to swallow liquids | 4 |
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