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| Group | Carcinogenicity |
|---|---|
| 1 | The agent is carcinogenic to humans |
| 2A | The agent is probably carcinogenic to humans |
| 2B | The agent is possibly carcinogenic to humans |
| 3 | The agent is not classifiable as to its carcinogenicity
to humans |
| 4 | The agent is probably not carcinogenic to humans |
