No Pouch, no problem: Zenker's diverticulumに対する修正された口腔周囲内視鏡下筋切開術を用いた症状のある上咽頭バーの内視鏡的分割術の成功
No pouch, no problem: successful endoscopic division of a symptomatic cricopharyngeal bar using a modified peroral endoscopic myotomy technique for Zenker's diverticulum.
