Fig. 3From: The prognostic significance of human epidermal growth factor receptor family protein expression in operable pancreatic cancerKaplan–Meier survival curve analysis. Patients were categorized according to HER positive and negative expression status. Curves show overall survival differences according to HER1 (a), HER2 (b), HER3 (c), and HER4 (d) expression statusBack to article page