P.05.11 ENDOSCOPIC AMPULLECTOMY FOR NEOPLASTIC LESIONS OF THE AMPULLA OF VATER: A SYSTEMATIC REVIEW WITH POOLED ANALYSIS. (25th March 2019) - Fugazza, A.; Spadaccini, M.; Frazzoni, L.; Fuccio, L.; Maselli, R.; Lamonaca, L.; Craviotto, V.; D'Amico, F.; Maroni, L.; Hassan, C.; Repici, A.; Anderloni, A.