7Lim JH. Cholangiocarcinoma: morphologic classification according to growth pattern and imaging findings [J] . AJR,2003 ,181: 819-827.
8Munir K, Bari V, Yaqoob J, et al. The role of magnetic resonance cholangiopancreatography (MRCP) in obstructive jaundice[J]. Pakistan Med Association, 2004, 54(3):128- 132.