Figure 3.

Correlation between human epidermal growth factor receptor 2 immunohistochemistry digital imaging analysis connectivity and human epidermal growth factor receptor 2 fluorescence in situ hybridization ratio. The Pearson correlation coefficient (r) for human epidermal growth factor receptor 2 immunohistochemistry digital imaging analysis connectivity and human epidermal growth factor receptor 2 fluorescence in situ hybridization ratio was 0.824927 (n = 442; P <0.0001). (y = 7.1342x + 0.7798. R^² =0.6701)