Table 6.  Levels of lumbar spondylolysis in the present study and previous reports.
| Vertebrae | This study | Harada et al.5) | Nakamura et al.12) |
| L5 | 7 | 18 | 10 |
| L4, L5 | 0 | 0 | 1 |
| L4 | 1 | 0 | 3 |
| L3, L4, L5 | 0 | 0 | 2 |
| L2, L3 | 0 | 0 | 1 |
Data given as number.
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