PREDICTORS OF FAILURE OF EN BLOC RESECTION OR PERFORATION IN ENDOSCOPIC SUBMUCOSAL DISSECTION FOR ESOPHAGEAL NEOPLASIA - Nagami, Y; Ominami, M; Sakai, T; Fukunaga, S; Yamagami, H; Tanigawa, T; Watanabe, T; Fujiwara, Y (Endoscopy, 2019)