Endoscopic submucosal dissection with early multitraction placed before circumferential incision allows excellent exposure but with a risk of catching the muscularis propria - Grimaldi, Jean; Rivory, Jérôme; Lambin, Thomas; Lafeuille, Pierre; Jacques, Jérémie; Ponchon, Thierry; Pioche, Mathieu (Endoscopy, 2021)