@misc{indiciae5ce94bb05b9c,
  title = {Biliary tract cancer.},
  author = {J A Ehrenfried and J N Vauthey},
  year = {1999},
  doi = {10.1097/00001574-199909000-00010},
  url = {https://pubmed.ncbi.nlm.nih.gov/17023985/},
  note = {Source identifier: 17023985}
}