Figure 4.

Notch box plots of the expression levels of plasminogen activator inhibitor (PAI)-1, cyclooxygenase (COX)-2 and HER-2 as detected (a) in 317 independent surgical specimens of primary breast cancer patients who did not undergo previous diagnosis by core biopsy, (b) in the core biopsy of the 21 patients entering this study, and (c) in the corresponding surgical excisions.