Precut esophageal endoscopic mucosal resection for cervical esophageal cancer to minimize mucosal defect - Kawamura, Reona; Abe, Seiichiro; Ego, Mai; Suzuki, Haruhisa; Yoshinaga, Shigetaka; Oda, Ichiro; Saito, Yutaka (Endoscopy, 2021)