Diagnostic and interventional procedures in the biliary tract.
D001650:Bile Duct Neoplasms / Q000532:radiotherapy; D001660:Biliary Tract Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D001918:Brachytherapy; D002758:Cholangiography; D004322:Drainage; D006801:Humans; D007495:Iridium / Q000627:therapeutic use; D011868:Radioisotopes / Q000627:therapeutic use
D011868:Radioisotopes; D007495:Iridium