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Introduction Zenker’s diverticulum (ZD) is a rare upper esophageal pathology that is most prevalent in the sixth and seventh decade. Three different therapeutical options are available: (1) open trans-cervical approach, (2) rigid endoscopy and (3) flexible endoscopy. Our hypothesis is that a flexible endoscopic cricomyotomy represents a safe and effective treatment of ZD as well as cricopharyngeal...
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