Figure 2From: Expression pattern of class I histone deacetylases in vulvar intraepithelial neoplasia and vulvar cancer: a tissue microarray study HDACs immunoreactivity score (IRS) in VIN and vulvar cancer tissue. The mean IRS is represented by a circle, and the 95% confidence interval is represented by an error bar. The confidence intervals of VIN and VSCC in HDAC 2 and HDAC 3 do not overlap in contrast to that of HDAC 1.Back to article page