title: [Clinical trial of a new contrast media. Double contrast study of the esophagus and stomach].
mesh_terms: D002986:Clinical Trials as Topic; D003287:Contrast Media; D004386:Duodenum / Q000000981:diagnostic imaging; D004947:Esophagus / Q000000981:diagnostic imaging*; D006801:Humans; D009930:Organic Chemicals; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media; D009930:Organic Chemicals; C029043:EZ-HD; C029044:Barytgen
vernacular_title: Dubbelkontrastundersökning av esofagus--ventrikel.