Columbia subject headings:
Biliary tract--Diseases--Diagnosis.
Biliary tract--Radiography.
Liver--Diseases--Diagnosis.
Liver--Radiography.
Radioisotope scanning.
Harvard subject headings:
Biliary tract--Diseases--Diagnosis.
Biliary tract--Radiography.
Liver--Diseases--Diagnosis
Liver--Radiography
Radioisotope scanning.
Princeton subject headings: