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Histologic features of the bioptic samples according to ICRS Visual Histological Assessment Scale (group A: PRP; group B: PRP + AD-MSC).
| Group A | Group B | |||
|---|---|---|---|---|
| Surface | 3 | 3 | 3 | 3 |
| Matrix | 2 | 1 | 3 | 3 |
| Cell distribution | 1 | 2 | 2 | 3 |
| Cell population viability | 1 | 1 | 3 | 3 |
| Subchondral bone | 2 | 2 | 3 | 2 |
| Cartilage mineralization | 0 | 0 | 3 | 3 |
