Zenkerʼs diverticulum peroral endoscopic myotomy is effective in the case of an incipient Zenkerʼs diverticulum - Lupu, Alexandru; Yzet, Clara; Lafeuille, Pierre; Masgnaux, Louis-Jean; Lambin, Thomas; Rivory, Jérôme; Pioche, Mathieu (Endoscopy, 2022)