This article has an accompanying continuing medical education activity, also eligible for MOC credit, on page e20. Learning Objective: Upon the completion of this CME exam, successful learners will be able to: (1) Describe the advantages of submucosal tunneling endoscopic septum division (STESD) compared with conventional endoscopic procedure for treating Zenker's diverticulum. (2) Get a general idea of the major steps of STESD technique. Scan the quick response (QR) code to the left with your mobile device to watch this article's video abstract and others. Don't have a QR code reader? Get one by searching 'QR Scanner' in your mobile device's app store.

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