title: [Diagnostic value of oesophageal examination by the double contrast method (author's transl)].
mesh_terms: D001466:Barium Sulfate / Q000008:administration & dosage*; D001639:Bicarbonates / Q000008:administration & dosage*; D003287:Contrast Media / Q000008:administration & dosage*; D004935:Esophageal Diseases / Q000000981:diagnostic imaging*; D004947:Esophagus / Q000000981:diagnostic imaging*; D005069:Evaluation Studies as Topic; D006801:Humans; D011187:Posture; D011859:Radiography; D014867:Water
chemical_list: D001639:Bicarbonates; D003287:Contrast Media; D014867:Water; D001466:Barium Sulfate
vernacular_title: Wartość diagnostyczna badania przełyku metoda dwukontrastowa.