@misc{indiciaef5b85d3e9a1a,
  title = {Gallstone ileus.},
  author = {P J WRIGHT and P A TRAFFORD},
  year = {1953},
  doi = {10.1002/bjs.18004116503},
  url = {https://pubmed.ncbi.nlm.nih.gov/13081998/},
  note = {Source identifier: 13081998}
}