Dysphagia.
D003680:Deglutition Disorders / Q000209:etiology*; D004931:Esophageal Achalasia / Q000150:complications / Q000000981:diagnostic imaging; D004935:Esophageal Diseases / Q000150:complications; D004938:Esophageal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D006548:Hernia, Diaphragmatic / Q000150:complications; D006801:Humans; D011859:Radiography