Accuracy of double contrast gastroduodenal radiology.
D003287:Contrast Media; D004386:Duodenum / Q000000981:diagnostic imaging*; D006801:Humans; D008722:Methods; D011859:Radiography; D013270:Stomach / Q000000981:diagnostic imaging*; D013679:Technology, Radiologic / Q000592:standards*
D003287:Contrast Media