@misc{indiciaeabb3b060a3de,
  title = {Gallstone ileus.},
  author = {H Gajraj},
  year = {1991},
  doi = {10.1002/bjs.1800780336},
  url = {https://pubmed.ncbi.nlm.nih.gov/2021860/},
  note = {Source identifier: 2021860}
}