Suitability of the expanded indication criteria for the treatment of early gastric cancer by endoscopic submucosal dissection: Japanese multicenter large-scale retrospective analysis of short- and long-term outcomes. - Nakamura K; Honda K; Akahoshi K; Ihara E; Matsuzaka H; Sumida Y; Yoshimura D; Akiho H; Motomura Y; Iwasa T; Komori K; Chijiiwa Y; et al. (Scandinavian journal of gastroenterology, 2015)