Tunnel and clip endoscopic submucosal dissection of a pharyngeal superficial squamous cell carcinoma detected with narrow-band imaging - Jacques, Jérémie; Rivory, Jérôme; Lépilliez, Vincent; Rinaldi, Leslie; Saurin, Jean-Christophe; Ponchon, Thierry; Pioche, Mathieu (Endoscopy, 2017)