Respiratory symptoms with normal physical findings.
D000293:Adolescent; D000367:Age Factors; D003937:Diagnosis, Differential; D004931:Esophageal Achalasia / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D013902:Radiography, Thoracic; D012140:Respiratory Tract Diseases / Q000000981:diagnostic imaging