title: [Double contrast method in the study of the upper digestive tract].
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage*; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging; D004947:Esophagus / Q000000981:diagnostic imaging*; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008297:Male; D008722:Methods; D008875:Middle Aged; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media
vernacular_title: Metodika dvoĭnogo kontrastirovaniia v izuchenii verkhnikh otdelov pishchevaritel'nogo trakta.