Diagnosis and evaluation of esophageal disorders.
D003680:Deglutition Disorders / Q000175:diagnosis; D004935:Esophageal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004945:Esophagoscopy; D006801:Humans; D008365:Manometry; D011859:Radiography; D011877:Radionuclide Imaging