Endoscopic features of an adenoid cystic carcinoma of the esophagus: narrow-band imaging and dual focus magnification - Bardou, Franck Nicolas; Rivory, Jérôme; Robert, Maud; Collet Benzaquen, Diane; Fléjou, Jean-François; Ponchon, Thierry; Pioche, Mathieu (Endoscopy, 2016)