Treatment of achalasia with the Witzel pneumatic dilator.
D000328:Adult; D000368:Aged; D004106:Dilatation / Q000295:instrumentation*; D004931:Esophageal Achalasia / Q000628:therapy*; D004945:Esophagoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged