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Scoring chart for HET-CAM test.
| Effect | Scores | Inference |
|---|---|---|
| No visible hemorrhage | 0 | Non-irritant |
| Only visible membrane discoloration | 1 | Mild irritant |
| Structures covered partially due to membrane discoloration or hemorrhage | 2 | Moderately irritant |
| Structures covered totally due to membrane discoloration or hemorrhage | 3 | Severe irritant |
