Leonard, D S Oesophageal achalasia: an argument for primary surgical management. [electronic resource] - The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland Apr 2009 - 101-13 p. digital Publication Type: Journal Article; Review ISSN: 1479-666X Standard No.: 10.1016/s1479-666x(09)80025-5 doi Subjects--Topical Terms: DilatationEndoscopyEsophageal Achalasia--diagnosisEsophageal Sphincter, LowerHumans