title: [Double contrast esophagography in the diagnosis of early esophageal cancer--a report of 14 cases].
mesh_terms: D000328:Adult; D000368:Aged; D001466:Barium Sulfate; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging*; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D001466:Barium Sulfate