Figure 4From: Prognostic impact of MGMT promoter methylation and MGMT and CD133 expression in colorectal adenocarcinoma Immunohistochemical CD133 staining in colorectal adenocarcinoma tissue samples. (A) Representative photomicrographs of TMA punches illustrating low (a) and high (b) CD133 expression intensity; bar, 50 μm. (B) Photomicrographs of TMA punches illustrating different percentage CD133 expression levels: negative (a), <50% (b), ≥50% (c); bar, 200 μm.Back to article page