Chen, Yijie TGF-β1 expression is associated with invasion and metastasis of intrahepatic cholangiocarcinoma. [electronic resource] - Biological research May 2015 - 26 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0717-6287 Standard No.: 10.1186/s40659-015-0016-9 doi Subjects--Topical Terms: Biomarkers, Tumor--bloodCholangiocarcinoma--metabolismFemaleHumansImmunohistochemistryKaplan-Meier EstimateLiver Neoplasms--metabolismLymphatic MetastasisMaleMiddle AgedNeoplasm Proteins--metabolismNeoplasm StagingTime FactorsTransforming Growth Factor beta1--metabolism