OC.01.2 A SYSTEMATIC REVIEW AND META-ANALYSIS OF ENDOSCOPIC AND SURGICAL RESECTION FOR AMPULLARY LESIONS. (1st October 2020) - Heise, C.; Auriemma, F.; Abou Ali, E.; Hasencelever, D.; Gulla, A.; Regner, S.; Gaujoux, S.; Hollenbach, M.