Cardiac achlasia. Report of a case in a 4-year old child.
D001464:Barium; D002675:Child, Preschool; D003250:Constriction / Q000601:surgery; D004106:Dilatation; D004931:Esophageal Achalasia; D004947:Esophagus; D006801:Humans; D013902:Radiography, Thoracic
D001464:Barium