Achalasia of the oesophagus.
D004106:Dilatation; D004931:Esophageal Achalasia / Q000209:etiology*; D004935:Esophageal Diseases / Q000601:surgery*; D006801:Humans; D066298:In Vitro Techniques; D009130:Muscle, Smooth / Q000473:pathology; D009197:Myenteric Plexus
Lancet. 1965 Dec 18;2(7425):1287-9
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