title: Achalasia dilation under direct vision revisited.
authors: R J
authors: RJ
authors: Manning
authors: M L
authors: ML
authors: Hall
mesh_terms: D000368:Aged; D002404:Catheterization / Q000379:methods*; D004931:Esophageal Achalasia / Q000628:therapy*; D006801:Humans; D008297:Male