Figure 1: Immunohistochemical staining of β-Catenin, Ki-67, FAS and ErB-b2 expression in OSCC: (A) β-catenin (original magnification 400x), (B) Ki-67 (original magnification 200x), (C) FAS (original magnification 200x) and (D) ErB-b2 (original magnification 400x).