ACHALASIA.
D000293:Adolescent; D002648:Child; D002933:Cineradiography; D003933:Diagnosis; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia; D006801:Humans; D010336:Pathology; D010827:Physiology; D013902:Radiography, Thoracic; D013514:Surgical Procedures, Operative
ADOLESCENCE; CARDIOSPASM; CHILD; CINEFLUOROGRAPHY; DIAGNOSIS; DIAGNOSIS, DIFFERENTIAL; PATHOLOGY; PHYSIOLOGY; SURGERY, OPERATIVE; THORACIC RADIOGRAPHY