Figure 1.

Overall survival period of patients with OSCC. (A) Two histologic sections of OSCC, stained with H&E (upper) and α-SMA (lower) (C, cancer region; S, stromal region). Each column is representative of low-level stromal proportion/α-SMA expression (left) and high-level stromal proportion/α-SMA expression (right) (original magnification, × 40; scale bar, 200 μm). Higher magnification (× 200) views of cancer and stromal regions are presented in the inset micrograph. The micrographs shown in this figure are representative of 100 independent tissues that showed similar results. (B) Overall survival of 100 patients with OSCC classified into (i) low (blue)/high (green) stromal proportion and (ii) low (blue)/high (green) α-SMA expression was analyzed by Kaplan-Meier method.