Figure 1. High protein SERPINE1 expression is associated with poor prognosis in patients with head and neck carcinoma included in a retrospective study.

A. Representative images of SERPINE1 immunohistochemistry in pre-treatment tumor biopsies included in the retrospective study (low intensity, 1; intermediate intensity, 2; high intensity, 3). Differences in local recurrence-free (LRFS) B. progression-free (PFS) C. and cancer-specific (CSS) survival D. according to the intensity of SERPINE1 staining.