Endoscopy, Table of Contents Endoscopy 2021; 53(07): v33DOI: 10.1055/a-1293-3698 Author commentary Author commentary on Omid Sanaei et al. Recommend Article Abstract Refers to:Impact of prior treatment on feasibility and outcomes of Zenker’s peroral endoscopic myotomy (Z-POEM) Endoscopy 2021; 53(07): 722-726DOI: 10.1055/a-1276-0219 Full Text
