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Lumbar NP tissue samples obtained from 12 patients undergone surgery due to spinal disc herniation. Table shows details of the NP tissue samples with disc level and disc degeneration grade (DDG)
| NP Tissue | Disc level | DDG |
|---|---|---|
| 1 | L5/S1 | III |
| 2 | L4/L5 | III |
| 3 | L4/L5 | III |
| 4 | L4/L5 | III |
| 5 | L5/S1 | IV |
| 6 | L4/L5 | IV |
| 7 | L5/S1 | IV |
| 8 | L5/S1 | IV |
| 9 | L5/S1 | V |
| 10 | L4/L5 | V |
| 11 | L5/S1 | V |
| 12 | L5/S1 | V |
