Reduction of Raf Kinase Inhibitor Protein Expression is Associated with Lymph Node Metastasis in Resectable Non-small Cell Lung Cancer

Fig. (1) Immunohistochemical staining of RKIP in NSCLC. A: Strong positive staining of RKIP in lung adenocarcinoma, B: in lung squamous cell cancer, C: Weakly positive staining in lung squamous cell cancer.