@misc{indiciae4a717427eef4,
  title = {Gallstone ileus: a diagnostic problem.},
  author = {R J Kurtz and T M Heimann and A B Kurtz},
  year = {1983},
  doi = {10.1016/0002-9610(83)90404-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6614318/},
  note = {Source identifier: 6614318}
}