Figure 3:

Effects of SM vapor on expression of keratin 3 in the rabbit cornea. Histological sections, prepared from control (CTL) corneas and corneas 3, 14, and 28 days post-SM, were stained with an antibody against keratin 3. Antibody binding was visualized using a Vectastain Elite ABC kit. One representative section from 4 rabbits/exposure group is shown. Ep, epithelium; S, stroma.