Fig. 1From: EP3 (prostaglandin E2 receptor 3) expression is a prognostic factor for progression-free and overall survival in sporadic breast cancerEP3 expression in breast cancer. Exemplary immuno-histochemical EP3 staining of breast cancer tissue samples is displayed. a Percentage of EP3 positive cells < 50%. b Percentage of EP3 positive cells > 50%. c Positive control (placenta). d Negative control (normal serum)Back to article page