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Comparison of immunohistochemical expressions of PDGFR-β and α-SMA in stromal CAFs.
| α-SMA | Total | Kappa value | ||||
|---|---|---|---|---|---|---|
| Score 1 | Score 2 | Score 3 | ||||
| PDGFR-β | Score 1 | 8 | 3 | 0 | 11 | 0.684 |
| Score 2 | 1 | 12 | 3 | 16 | ||
| Score 3 | 0 | 3 | 20 | 23 | ||
| Total | 9 | 18 | 23 | 50 | ||
α-SMA, alpha-smooth muscle actin; CAF, cancer-associated fibroblast; PDGFR-β, platelet-derived growth factor receptor-beta
