Table 2.
Distribution of the WHO grades at the second and the third surgery in originally WHO grade I meningiomas.
| WHO grade | 2nd surgery | 3rd surgery |
|---|---|---|
| I | 76 (87.4%) | 14 (70%) |
| II | 8 (9.2%) | 3 (15%) |
| III | 3 (3.4%) | 3 (15%) |
| Total | 87 | 20 |
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