_:vb50953351 . "disease_ontology"^^ . "DOID:4897"^^ . . "bile duct carcinoma"^^ . . _:vb50953351 . "UMLS_CUI:C0740277"^^ . "SNOMEDCT_US_2021_09_01:70179006"^^ . _:vb50953351 . . _:vb50953351 . "MESH:D001650"^^ . "NCI:C27814"^^ . . . "A bile duct cancer that has_material_basis_in abnormally proliferating cells derives_from epithelial cells."^^ . _:vb50953351 .