Figure 4
Immunohistochemical expression of Brn-3a(l) in normal, benign, borderline, grade 1, grade 2 and grade 3 ovarian tumors. Medians are shown as horizontal lines. Significant differences in the extent of epithelial and stromal Brn-3a(l) staining between normal and grades 1, 2 and 3 tumors are indicated by * (p < 0.01) and ** (p < 0.05).