[Clinical radiographic study of the duodenum in biliary tract diseases].
D000328:Adult; D000368:Aged; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging; D001660:Biliary Tract Diseases / Q000000981:diagnostic imaging*; D004386:Duodenum / Q000000981:diagnostic imaging*; D005260:Female; D005706:Gallbladder Neoplasms / Q000000981:diagnostic imaging; D042882:Gallstones / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography