Table 2 Scoring system for Col1, Col4, a-SMA, and MMP-9—distribution score (percentage) in the tissue
From: The expression of stromal biomarkers in small papillary thyroid carcinomas
Score | Expression (%) of Col1/Col4/a-SMA/MMP-9 |
|---|---|
0 | Negative stain |
1 | 1–25% staining |
2 | 26–50% staining |
3 | 51–75% staining |
4 | 76–100% staining |