Underwater Piecemeal Endoscopic Mucosal Resection (EMR) With Hot Snare of a Giant Sigmoid Polyp - Gonzalez-Gonzalez, L; Colan-Hernandez, J; Marín, I; Moreno, V; Caballero, N; Puig, M; Iborra, I; Troya, J; Uchima, H (Endoscopy, 2021)