INVASIVE RECURRENCE RATE AND CLINICOPATHOLOGICAL FEATURES AFTER ENDOSCOPIC RESECTION FOR 591 T1 COLORECTAL CANCERS - Kawashima, K; Saito, Y; Mizuguchi, Y; Takamaru, H; Wu, SYS; Sekiguchi, M; Yamada, M; Sakamoto, T; Matsuda, T (Endoscopy, 2019)