OC.03.10 ELASTIC BAND TRACTION TECHNIQUE FOR CANNULATING INTRADIVERTICULAR PAPILLA DURING ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY (ERCP). (September 2021) - Dell'Anna, G.; Ponz De Leon Pisani, R.; Mandarino, F.V.; Napolitano, M.; Lerna, V.; Cangelli, G.; Testoni, P.A.