Salvage endoscopic submucosal dissection with a small-caliber endoscope for recurrent esophageal cancer on distal side of esophageal stricture - Tanaka, Kyosuke; Umeda, Yuhei; Asakawa, Hiroki; Miura, Hiroshi; Nakamura, Misaki; Katsurahara, Masaki; Hamada, Yasuhiko (Endoscopy, 2020)