title: The long-term efficacy of pneumatic dilation and Heller myotomy for the treatment of achalasia.
authors.forename: John B
authors.initials: JB
authors.lastname: Marshall
mesh_terms: D002404:Catheterization / Q000379:methods*; D004931:Esophageal Achalasia / Q000601:surgery / Q000628:therapy*; D049630:Esophageal Sphincter, Lower / Q000601:surgery*; D004945:Esophagoscopy; D006801:Humans; D010535:Laparoscopy; D016896:Treatment Outcome