Figure 5.

Kaplan–Meier curves of dichotomised variables, based on overall survival. Anti-HER1–HER4 immunohistochemistry (a1,b,c,d), anti-HER2 FISH (a2) and immunohistochemistry score 2+, stratified by FISH-amplified and non-amplified cases (a3). FISH, fluorescence in situ hybridisation.