Endoscopic submucosal dissection by transnasal endoscope for esophageal cancer with pharyngoesophageal anastomotic stricture after total pharyngo-laryngo-esophagectomy - Kitagawa, Yoshiyasu; Suzuki, Takuto; Nakamura, Kentaro; Nankinzan, Rino; Yamaguchi, Taketo (Endoscopy, 2020)