Couchonnal, Eduardo EUS-guided per-oral endoscopic myotomy to treat an achalasia with relapse after Heller's myotomy. [electronic resource] - Gastrointestinal endoscopy 04 2017 - 849-851 p. digital Publication Type: Case Reports; Journal Article ISSN: 1097-6779 Standard No.: 10.1016/j.gie.2016.05.001 doi Subjects--Topical Terms: AgedEndosonographyEsophageal Achalasia--diagnostic imagingHeller MyotomyHumansMaleMyotomy--methodsRecurrenceReoperation--methods