Table 1.
Survival rate and average survival period
| Group | Number of rats examined | Survival at 104 wk (%) | Average survival (wk) |
|---|---|---|---|
| Vehicle | 15 | 80 | 101.5 |
| MWNT‐7 | 19 | 5 | 78.6 |
| Crocidolite | 19 | 79 | 102.4 |
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