Achalasia of the esophagus: results of therapy by dilation, 1950-1967.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003680:Deglutition Disorders / Q000628:therapy*; D004106:Dilatation; D004935:Esophageal Diseases / Q000628:therapy*; D004945:Esophagoscopy; D005500:Follow-Up Studies; D005769:Gastrointestinal Motility; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008722:Methods; D008875:Middle Aged