![An external file that holds a picture, illustration, etc., usually as some form of binary object. The name of referred object is rmmj-12-4-e0028-g002.gif](images\rmmj-12-4-e0028-g002.jpg)
Figure 2. Photomicrographs of Immunohistochemical Staining in Mild P16-negative OED
A: Patchy P16 staining. B: Negative ALDH1 staining. C: Negative OCT4 staining. D: Positive SOX2 staining. E: Positive CD44 staining. Original magnification ×100 for A, B, D, E; ×400 for C.