ESD ALLOWS BETTER STRATIFICATION OF METASTATIC RISK IN NON-PEDUNCULATED PT1 COLORECTAL CANCER: A SINGLE CENTRE RETROSPECTIVE STUDY - Sassatelli, R; Lucarini, M; Cecinato, P; Iori, V; Mirante, VG; De Marco, L; Arona, S; Bassi, F; Campanale, M; Cavina, M; Decembrino, F; Grillo, S; Parmeggiani, F; Sereni, G; Tioli, C; Zecchini, R (Endoscopy, 2020)