Infected esophageal subepithelial hematoma after peroral endoscopic myotomy for achalasia successfully treated with double-pigtail stent drainage - Oung, Borathchakra; Rostain, Florian; Rivory, Jérôme; Boibieux, André; Schoch, Armelle; Mion, François; Pioche, Mathieu (Endoscopy, 2020)