Figure 1. Photomicrographs of Immunohistochemical Staining in Severe P16-positive Oral Epithelial Dysplasia (OED)
A: P16 positive staining. B: Positive ALDH1 staining. C: Positive OCT4 staining. D: Negative SOX2 staining. E: Negative CD44 staining. Original magnification ×100 for A, B, D, E; ×400 for C.