@misc{indiciaeab007e9f994e,
  title = {Whither biliary sludge--do you exist?},
  author = {I B Andersen and L Højgaard},
  year = {1991},
  doi = {10.1016/0016-5085(91)90439-r},
  url = {https://pubmed.ncbi.nlm.nih.gov/1955147/},
  note = {Source identifier: 1955147}
}