Diagnostic endoscopic submucosal dissection with targeted tunnel to reach the suspect area first in order to diagnose muscular invasion and differentiate T1b from T2 cancers - Meunier, Camille; Jacques, Jérémie; Rivory, Jérôme; Lambin, Thomas; Walter, Thomas; Ponchon, Thierry; Pioche, Mathieu (Endoscopy, 2020)