Endoscopic Resection of Ampullary Carcinoma - Neves, P; Leitão, M; Portela, F; Pontes, J M; Areia, M; Brito, D; Sousa, H T; Souto, P; Camacho, E; Andrade, P; Gouveia, H; Freitas, D (Endoscopy, 2006)