P-020Immunohistochemical study of KRAS, NRAS, BRAF and MSI phenotype in small bowel adenocarcinoma. (20th June 2018) - Michalaki, V; Frangulidis, G; Poydorou, A; Theodosopoulos, T; Vezakis, A; Dafnios, N; Frangou, M; Karvouni, E; Papadimitriou, C