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Average optical density of typical and atypical ductular cells for CK8, CK19 and OV6 staining
| Cell Types | Fields | CK8 | CK19 | OV6 |
| Typical | 8 | 0.402 ± 0.083 | 0.902 ± 0.355 | 0.324 ± 0.121 |
| Atypical | 9 | 0.998 ± 0.238b | 0.371 ± 0.105b | 0.752 ± 0.210 |
bP < 0.001 vs typical
