Figure 2

Survival analysis for ErbB2 in oesophageal adenocarcinomas. (a) ErbB2 and disease-free survival (DFS); (b) ErbB2 and overall survival (OS). ErbB2 positivity is defined as immunohistochemistry 3+ and/or an ErbB2/Chr17 quotient of >2 as assessed by in situ hybridisation.