The problem of dysphagia.
D003680:Deglutition Disorders / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D003937:Diagnosis, Differential; D004326:Drinking; D004435:Eating; D004931:Esophageal Achalasia / Q000503:physiopathology; D004935:Esophageal Diseases / Q000150:complications; D004938:Esophageal Neoplasms / Q000150:complications; D006801:Humans; D009135:Muscular Diseases / Q000150:complications; D010608:Pharyngeal Diseases / Q000150:complications