Biliary tract obstruction的用法和样例：
- Most often this is due to extrahepatic biliary tract obstruction.
- Objective: To investigate myocardial injury and its mechanism after biliary tract obstruction.
- Objective To investigate MR cholangiopancreatographic(MRCP)features and classification of malignant biliary tract obstruction in comparison with pathology.
- Pre-operative measures to decrease re-operation rate in surgical treatment of high-positioned biliary tract obstruction
- Keywords Clonorchiasis sinensis;Biliary tract obstruction;Drainage in biliary tract;
- Efficacious observation of malignant upper biliary tract obstruction by implantation of biliary duct stent using Elemene perfusion via hepatic artery